I know how people hate to keep hitting links so I put this all together so you can just read and maybe print for further use!
This is research from 3 different sources, and all 3 hold Doctorates...I just combined the info so it was easier to understand and read!
Choosing lure colors...first the basics!
When light strikes an object some wavelengths are absorbed and others are reflected. It is those wavelengths that are reflected from the object that reach our eyes and are interpreted by our brain as color, SAME WITH MOST FISH!
Objects that appear white to us are effective at reflecting all of the visible wavelengths of light. Objects that absorb all wavelengths and don't reflect any appear to us to be black. Between the extremes, most objects absorb some wavelengths and reflect others and appear to our eyes to be colored. The color we see is the combination of all reflected wavelengths. For example, when white light strikes a leaf, most of the visible wavelengths of light are absorbed, but the green ones are reflected, making the leaf appear green.
When white light passes STRAIGHT through, PURE CLEAR, STILL water the various wavelengths are absorbed at different rates. The long wavelengths (reds) are readily absorbed by the water molecules while the shorter ones (violets) are absorbed at a slower rate and penetrate further into the water.
What this means to us is that some lure colors simply aren't visible to a fish that is deeper in the water column.
The longer wavelengths (reds and oranges) are absorbed nearest the surface, so at depth there aren't any of these wavelengths to reflect off the lure. All other wavelengths are absorbed, so that color on the lure appears to the fish to be black, or at best may appear weakly colored by other wavelengths. As the lure dives further down in the water column yellow wavelengths start to disappear, then green. Blue, indigo and violet penetrate the deepest, but even these disappear eventually.
In PERFECT dead calm water, 25% of all light is reflected or absorbed in the first 1/2 inch...at 3 foot deep only 45% of the total light reaches a lure...AT 3FEET DEEP, IN CRYSTAL CLEAR, CALM WATER, WITH THE SUN DIRECTLY OVERHEAD, PERFECT WEATHER, 55% of the light is gone/absorbed!
At 35 feet deep almost 90% of the light has been absorbed!
In the real world this doesn't really help because we mostly don't fish crystal clear ocean waters, we often don't fish at noon in summer (for many species that's the WORST time to fish), or water that is not perfectly still. That means the color of our lures dissappear even faster and appear to be even more different to the fish depending on the time of day we fish and the waters we fish in. AS COLORS DISAPPEAR IN THE WATER, THEY ARE REPLACED WITH SHADES OF GREY OR BLACK.
Water clarity and color
In deep ocean waters there are a couple of prime reasons why light penetrates so well, clarity and color.
Clarity refers to the lack of suspended or particulate material such as silt, algae, plankton, etc, in the water. These particles have the effect of causing light to scatter, being reflected off in all directions, reducing the penetration of all wavelengths, but especially the longer ones (like red). In open oceans the water is generally (but not always) very clear...meaning light penetrates to far greater depths than near shore or inland waters. In these waters things like pollution, erosion, algal growth, etc, cause a reduction in clarity and significant reductions in the penetration of light. These reductions in light penetration begin to happen even before the turbidity becomes visible to the naked eye.
Visible wavelengths are absorbed more rapidly and the perceived color of lures occurs at SHALLOWER depths if the water is not clear.
Color of water
Is the characteristic caused by dissolved materials, especially organic acids from decaying leaves, trees, etc, or aquatic vegetation (Tannins).
Think of a cup of tea, it has good clarity, but is strongly colored. Color reduces light penetration by absorbing some wavelengths more than others. Interestingly it's the blues and greens that are most affected. Some lakes and rivers are so highly colored by natural organic acids that the blue/green wavelengths won't penetrate more than a 1/2" to 1", but the water in these lakes can be as clear and pure and as pristine as you can get. Again...Water that is colored by organic material absorbs the blue wavelengths more readily, causing blues and purples to disappear from sight.
Seasonal cycles
To make things even more complicated, seasonal cycles in water color and turbidity also occur in many lakes and a number of different cycles are possible....The cycle in a lake that suffers nutrient pollution that results in significant algal blooms with this light penetration is reduced in summer by increasing concentrations of algae, with the red, orange and yellow most severely affected. Algal blooms peak in autumn, with significant reduction in the penetration of all wavelengths, but especially red, orange and yellow.
IN DIRTY WATER RED, ORANGE, AND SOME YELLOW CAN DISAPPEAR IN THE FIRST INCH OR TWO!
In winter the algae die off and the water clears. Light penetration is actually better in winter, despite the lower intensity and the reduced angle of the sun. In spring there is an influx of silt from floods, causing a reduction in the penetration of all wavelengths, but especially the blue ones.
Time of day/year
Your lure can appear to be a different colors depending on the time of day or the month of the year. Think about how we see color on a clear day in the afternoon compared with a cloudy day at dusk. On a clear day with the sun overhead there are fewer gas molecules and airborne particles to scatter the short (blue) wavelengths, so the sky appears blue. Towards dusk the light travels through a lot more gas and airborne particles, so lots of the blue wavelengths get scattered and don't reach our eyes. Red and orange wavelengths eventually give way to indigos and violets as the sun sets. The many changing hues of the sky also change the color of other objects we see in the colored light.
The aquatic environment not only emulates what happens above the waterline, but magnifies the effect. So the loss of blue wavelengths at each end of the day is much greater underwater and starts earlier in the day than it does above water. Remember that these are the ones that penetrate deepest, so the period over which colors are visible deep in the water are much shorter than they are at the surface. The angle at which light strikes the water surface alters the depth to which colors are visible and light penetration is affected by the angle of the sun above the water, all the wavelengths penetrate the water to the same extent, but as the light comes in at an angle it doesn't reach the same depth.
We see this every day outside...in the summer with the sun directly overhead...fewer of the short wavelengths get scattered and we tend to get brighter and more intense light (and the really short wavelengths get through, hence we get sunburnt!). In winter we get more subdued light, partly because the light travels a greater distance through the atmosphere and partly because clouds add water molecules to the atmosphere to further filter out light. This means that many wavelengths don't penetrate as deeply into the water during winter, so a lure travelling at a depth of about 15ft in winter could appear to be a different color than in summer, all other things being equal. This effect is much more pronounced the further you travel from the equator.
Other influences
Any ripple on the surface of a water body has the effect of increasing light scatter and reduces light penetration into the water. Pollution, both air and water, cloud cover, nearby trees, bridges, etc, can also influence light penetration and hence the color that lures appear underwater.
Tips for lure color selection
Choosing lure color for maximum benefit. When you start combining the effect of all of the above influences you can see that it is most unlikely that we'll be fishing under conditions that are perfect for light penetration into the water. More often than not, some or all of the above factors will come into play and will alter how the fish see lure color.
Well, here are a few tips to consider:
1. Use dark colors at night. THIS PROVIDES CONTRAST.
When you think about it, all colors appear to us at night to be black or shades of dark grey. Usually when we see something at night it's a shadow, and dark colors give the best shadow. Also, fish usually attack lures from below at night and during low light conditions. This is because it maximises the benefit of any limited light available. Under these conditions a dark lure throws the best silhouette and is therefore the most visible. Black, dark blue and purple are good choices at this time of day.
2. During winter or periods when there is lots of particulate material in the water (such as silt or algae), reds and oranges are the first colors to be filtered out. Under these conditions, lures with plenty of yellow, green or blue appear the most colorful below the surface. FLUORECENT COLORS DO NOT FADE if UV light is available (past Violet)! Also use darker contrasting colors oe White!
3. Red, orange, yellow, White, silver, metallic, flakes in colors, and FLUORESCENT colors, are most intense during bright summer days in clear, shallow water. Metallic finishes have some benefits at depth because they have a tendency to create flash, even under relatively low light conditions. Mind you, all colors are visible under these bright conditions and if the fish are actively feeding on baitfish that are blue in color, then that's the color to use. MATCH THE HATCH!
4. Color choice IS NOT A CONSIDERATION if you are fishing or trolling deep, particularly under low light conditions or if the water is colored or dirty. EVERYTHING will look shades of Gray or Black....The most important factors under these conditions are lure size, shape and action.
5. When fishing topwater lures, color is FAR LESS important than size, shape and action. A fish coming up below a surface or shallow running lure has the light behind it, making the lure appear grey or black. Try it for yourself - hold a fluorescent lure up to the sun and view it from below. Black and dark colors remain the best for surface lures because they throw a great silhouette.
6. Red and orange lures come into their own in tannin stained waters, as do FLUORESCENT hues...along with Black or White!
The reality is often that the size, shape, action or noise made by the lure play a much more important role in eliciting a strike. Don't underestimate angler confidence either - we will tend to persevere more and try harder with a lure we have had success with in the past.
Choose a lure based on the size of local baitfish, the depth at which your quarry is to be found, and the action most likely to produce results....then think about color.
The exception would be fishing in clear, shallow water, especially if the fish are feeding predominantly on baitfish or prey, of a particular color.
COLOR RESEARCH FOR "FEEDING" FISH!
Colors underwater never appear the same as they do in your hand...the sayings about "colors catching fishermen" are very true!
The three fish I mainly researched, Bass, Walleye, and Crappie, can see colors, it is thought that they actually see the yellow, orange, red, green, better than humans. They can tell the difference between smoke and smoke with red flakes or silver glitter, pumpkin and red pumpkin, watermelon and red or black flaked watermelon. They also have better visual acuity which helps at dawn or dusk. Research has also shown that sometimes they will scrutinize colors before committing to eat...they will pick a color that they are presently eating (match the hatch).
Since most of my fishing is in stained water I made it easy and used just the info FOR STAINED/FERTILE WATER LIKE CJ.
*If the STAINED water has a visibility of 5 feet anywhere in the lake, Fish can see FLAKES well, Natural colors are a must...Silver, Gold, subtle greens/browns.
*If the water has a visibility of 1-3 feet, use brighter colors like firetiger, Fluoresents, citrus shad.
*If the water has less than a foot of visibility use dark colors, dark patterns, brite craw patterns, Black/Blue.
*Contrast is key, you need to make it stand out, to get them to "See It"...contrast the rocks, bottom, water color, cover, etc!
BLUEBIRD SKYS offer another problem...in stained water, high "Bluebird sun" CAN MUTE NATURAL COLORS, so go brighter (Fluoresent, and add flash).
On cloudy days!
* shiney colors lose their effectivness under cloud cover...silver and gold turn gray, use white and pearl instead.
* Natural colors cannot be distinguished ON THE BOTTOM, use brown, black, blue/black, or other dark combos that contrast.
* Cloudy stained water filters out RED...it appears to turn into a grey!
* FIRETIGER stands out in all conditions, Black, and Fluoresent/pearl colors, also.
SHAD AT CJ WITH LIGHT PENETRATION TO ANY DEPTH will appear silvery, with subtle greens, blues, purple, and gold....on a cloudy day they will look light gray with a darker back!
Too often a lure will be selected on color, when the chosen color is often not visible to fish anyway. SAME WITH LINE COLOR, beads, hooks, etc, IN THE WATER!
AND FOR THOSE OF US THAT LIKE GATORS....THEY SEE IN "HIGH DEFINITION" black and white AT NIGHT! "All fish with the rods and cones like Bass, Crappie, and Walleye, see in BLACK and White at night....but unlike all the other fishes, Walleye have HD night vision and "see" better than their prey"...Walleye have the best night vision and can also pick up any UV given off!
I'll add to this as I find more info!
Choosing lure colors...first the basics!
When light strikes an object some wavelengths are absorbed and others are reflected. It is those wavelengths that are reflected from the object that reach our eyes and are interpreted by our brain as color, SAME WITH MOST FISH!
Objects that appear white to us are effective at reflecting all of the visible wavelengths of light. Objects that absorb all wavelengths and don't reflect any appear to us to be black. Between the extremes, most objects absorb some wavelengths and reflect others and appear to our eyes to be colored. The color we see is the combination of all reflected wavelengths. For example, when white light strikes a leaf, most of the visible wavelengths of light are absorbed, but the green ones are reflected, making the leaf appear green.
When white light passes STRAIGHT through, PURE CLEAR, STILL water the various wavelengths are absorbed at different rates. The long wavelengths (reds) are readily absorbed by the water molecules while the shorter ones (violets) are absorbed at a slower rate and penetrate further into the water.
What this means to us is that some lure colors simply aren't visible to a fish that is deeper in the water column.
The longer wavelengths (reds and oranges) are absorbed nearest the surface, so at depth there aren't any of these wavelengths to reflect off the lure. All other wavelengths are absorbed, so that color on the lure appears to the fish to be black, or at best may appear weakly colored by other wavelengths. As the lure dives further down in the water column yellow wavelengths start to disappear, then green. Blue, indigo and violet penetrate the deepest, but even these disappear eventually.
In PERFECT dead calm water, 25% of all light is reflected or absorbed in the first 1/2 inch...at 3 foot deep only 45% of the total light reaches a lure...AT 3FEET DEEP, IN CRYSTAL CLEAR, CALM WATER, WITH THE SUN DIRECTLY OVERHEAD, PERFECT WEATHER, 55% of the light is gone/absorbed!
At 35 feet deep almost 90% of the light has been absorbed!
In the real world this doesn't really help because we mostly don't fish crystal clear ocean waters, we often don't fish at noon in summer (for many species that's the WORST time to fish), or water that is not perfectly still. That means the color of our lures dissappear even faster and appear to be even more different to the fish depending on the time of day we fish and the waters we fish in. AS COLORS DISAPPEAR IN THE WATER, THEY ARE REPLACED WITH SHADES OF GREY OR BLACK.
Water clarity and color
In deep ocean waters there are a couple of prime reasons why light penetrates so well, clarity and color.
Clarity refers to the lack of suspended or particulate material such as silt, algae, plankton, etc, in the water. These particles have the effect of causing light to scatter, being reflected off in all directions, reducing the penetration of all wavelengths, but especially the longer ones (like red). In open oceans the water is generally (but not always) very clear...meaning light penetrates to far greater depths than near shore or inland waters. In these waters things like pollution, erosion, algal growth, etc, cause a reduction in clarity and significant reductions in the penetration of light. These reductions in light penetration begin to happen even before the turbidity becomes visible to the naked eye.
Visible wavelengths are absorbed more rapidly and the perceived color of lures occurs at SHALLOWER depths if the water is not clear.
Color of water
Is the characteristic caused by dissolved materials, especially organic acids from decaying leaves, trees, etc, or aquatic vegetation (Tannins).
Think of a cup of tea, it has good clarity, but is strongly colored. Color reduces light penetration by absorbing some wavelengths more than others. Interestingly it's the blues and greens that are most affected. Some lakes and rivers are so highly colored by natural organic acids that the blue/green wavelengths won't penetrate more than a 1/2" to 1", but the water in these lakes can be as clear and pure and as pristine as you can get. Again...Water that is colored by organic material absorbs the blue wavelengths more readily, causing blues and purples to disappear from sight.
Seasonal cycles
To make things even more complicated, seasonal cycles in water color and turbidity also occur in many lakes and a number of different cycles are possible....The cycle in a lake that suffers nutrient pollution that results in significant algal blooms with this light penetration is reduced in summer by increasing concentrations of algae, with the red, orange and yellow most severely affected. Algal blooms peak in autumn, with significant reduction in the penetration of all wavelengths, but especially red, orange and yellow.
IN DIRTY WATER RED, ORANGE, AND SOME YELLOW CAN DISAPPEAR IN THE FIRST INCH OR TWO!
In winter the algae die off and the water clears. Light penetration is actually better in winter, despite the lower intensity and the reduced angle of the sun. In spring there is an influx of silt from floods, causing a reduction in the penetration of all wavelengths, but especially the blue ones.
Time of day/year
Your lure can appear to be a different colors depending on the time of day or the month of the year. Think about how we see color on a clear day in the afternoon compared with a cloudy day at dusk. On a clear day with the sun overhead there are fewer gas molecules and airborne particles to scatter the short (blue) wavelengths, so the sky appears blue. Towards dusk the light travels through a lot more gas and airborne particles, so lots of the blue wavelengths get scattered and don't reach our eyes. Red and orange wavelengths eventually give way to indigos and violets as the sun sets. The many changing hues of the sky also change the color of other objects we see in the colored light.
The aquatic environment not only emulates what happens above the waterline, but magnifies the effect. So the loss of blue wavelengths at each end of the day is much greater underwater and starts earlier in the day than it does above water. Remember that these are the ones that penetrate deepest, so the period over which colors are visible deep in the water are much shorter than they are at the surface. The angle at which light strikes the water surface alters the depth to which colors are visible and light penetration is affected by the angle of the sun above the water, all the wavelengths penetrate the water to the same extent, but as the light comes in at an angle it doesn't reach the same depth.
We see this every day outside...in the summer with the sun directly overhead...fewer of the short wavelengths get scattered and we tend to get brighter and more intense light (and the really short wavelengths get through, hence we get sunburnt!). In winter we get more subdued light, partly because the light travels a greater distance through the atmosphere and partly because clouds add water molecules to the atmosphere to further filter out light. This means that many wavelengths don't penetrate as deeply into the water during winter, so a lure travelling at a depth of about 15ft in winter could appear to be a different color than in summer, all other things being equal. This effect is much more pronounced the further you travel from the equator.
Other influences
Any ripple on the surface of a water body has the effect of increasing light scatter and reduces light penetration into the water. Pollution, both air and water, cloud cover, nearby trees, bridges, etc, can also influence light penetration and hence the color that lures appear underwater.
Tips for lure color selection
Choosing lure color for maximum benefit. When you start combining the effect of all of the above influences you can see that it is most unlikely that we'll be fishing under conditions that are perfect for light penetration into the water. More often than not, some or all of the above factors will come into play and will alter how the fish see lure color.
Well, here are a few tips to consider:
1. Use dark colors at night. THIS PROVIDES CONTRAST.
When you think about it, all colors appear to us at night to be black or shades of dark grey. Usually when we see something at night it's a shadow, and dark colors give the best shadow. Also, fish usually attack lures from below at night and during low light conditions. This is because it maximises the benefit of any limited light available. Under these conditions a dark lure throws the best silhouette and is therefore the most visible. Black, dark blue and purple are good choices at this time of day.
2. During winter or periods when there is lots of particulate material in the water (such as silt or algae), reds and oranges are the first colors to be filtered out. Under these conditions, lures with plenty of yellow, green or blue appear the most colorful below the surface. FLUORECENT COLORS DO NOT FADE if UV light is available (past Violet)! Also use darker contrasting colors oe White!
3. Red, orange, yellow, White, silver, metallic, flakes in colors, and FLUORESCENT colors, are most intense during bright summer days in clear, shallow water. Metallic finishes have some benefits at depth because they have a tendency to create flash, even under relatively low light conditions. Mind you, all colors are visible under these bright conditions and if the fish are actively feeding on baitfish that are blue in color, then that's the color to use. MATCH THE HATCH!
4. Color choice IS NOT A CONSIDERATION if you are fishing or trolling deep, particularly under low light conditions or if the water is colored or dirty. EVERYTHING will look shades of Gray or Black....The most important factors under these conditions are lure size, shape and action.
5. When fishing topwater lures, color is FAR LESS important than size, shape and action. A fish coming up below a surface or shallow running lure has the light behind it, making the lure appear grey or black. Try it for yourself - hold a fluorescent lure up to the sun and view it from below. Black and dark colors remain the best for surface lures because they throw a great silhouette.
6. Red and orange lures come into their own in tannin stained waters, as do FLUORESCENT hues...along with Black or White!
The reality is often that the size, shape, action or noise made by the lure play a much more important role in eliciting a strike. Don't underestimate angler confidence either - we will tend to persevere more and try harder with a lure we have had success with in the past.
Choose a lure based on the size of local baitfish, the depth at which your quarry is to be found, and the action most likely to produce results....then think about color.
The exception would be fishing in clear, shallow water, especially if the fish are feeding predominantly on baitfish or prey, of a particular color.
COLOR RESEARCH FOR "FEEDING" FISH!
Colors underwater never appear the same as they do in your hand...the sayings about "colors catching fishermen" are very true!
The three fish I mainly researched, Bass, Walleye, and Crappie, can see colors, it is thought that they actually see the yellow, orange, red, green, better than humans. They can tell the difference between smoke and smoke with red flakes or silver glitter, pumpkin and red pumpkin, watermelon and red or black flaked watermelon. They also have better visual acuity which helps at dawn or dusk. Research has also shown that sometimes they will scrutinize colors before committing to eat...they will pick a color that they are presently eating (match the hatch).
Since most of my fishing is in stained water I made it easy and used just the info FOR STAINED/FERTILE WATER LIKE CJ.
*If the STAINED water has a visibility of 5 feet anywhere in the lake, Fish can see FLAKES well, Natural colors are a must...Silver, Gold, subtle greens/browns.
*If the water has a visibility of 1-3 feet, use brighter colors like firetiger, Fluoresents, citrus shad.
*If the water has less than a foot of visibility use dark colors, dark patterns, brite craw patterns, Black/Blue.
*Contrast is key, you need to make it stand out, to get them to "See It"...contrast the rocks, bottom, water color, cover, etc!
BLUEBIRD SKYS offer another problem...in stained water, high "Bluebird sun" CAN MUTE NATURAL COLORS, so go brighter (Fluoresent, and add flash).
On cloudy days!
* shiney colors lose their effectivness under cloud cover...silver and gold turn gray, use white and pearl instead.
* Natural colors cannot be distinguished ON THE BOTTOM, use brown, black, blue/black, or other dark combos that contrast.
* Cloudy stained water filters out RED...it appears to turn into a grey!
* FIRETIGER stands out in all conditions, Black, and Fluoresent/pearl colors, also.
SHAD AT CJ WITH LIGHT PENETRATION TO ANY DEPTH will appear silvery, with subtle greens, blues, purple, and gold....on a cloudy day they will look light gray with a darker back!
Too often a lure will be selected on color, when the chosen color is often not visible to fish anyway. SAME WITH LINE COLOR, beads, hooks, etc, IN THE WATER!
AND FOR THOSE OF US THAT LIKE GATORS....THEY SEE IN "HIGH DEFINITION" black and white AT NIGHT! "All fish with the rods and cones like Bass, Crappie, and Walleye, see in BLACK and White at night....but unlike all the other fishes, Walleye have HD night vision and "see" better than their prey"...Walleye have the best night vision and can also pick up any UV given off!
I'll add to this as I find more info!