1. Trout have color vision limited to clear, shallow, water and distance less than 12 feet.
2. Trout can discern differences in shades of color, and fluorescent colors are more visible.
3. The color red appears brighter than it does to humans, but quickly becomes black at greater distance.
4. White is best in stained water or water with impurities - other colors less significant.
5. In the low light conditions, trout can not distinguish color. Black, then, becomes the most visible.