When it comes to colour of lures i for one have asked a lot of good fisherman if fish see colour. As i was of the opinion they were colour blind. I did a bit of research on the matter and the best bit of info i came across was this from a Zoology or Animal Biology report. Zoology is the branch of biology that is concerned with the study of animals. The life, growth and classification of fauna in all living forms.
Q: How do fish see..?
A: Fish have eyes just like humans, but they also have protective film over them so that they can see clearly underwater. They have rod and cone cells on their retinas, so we know that they can see in colour as well as in shades of grey, and that they have some level of night vision. Fish have the same chemicals in their eyes which allow humans to see colours, so they can see the seven colour spectrum that we see. They also have another chemical in their eyes which allows them to see some ultra-violet frequencies as well.
In addition to their eyes fish also have what is called a lateral line. A lateral line is a thin, horizontal line of nerve receptors on each side of the fish that runs from head to tail. Using its lateral line, a fish can sense even the smallest of vibrations in the water and is able to determine objects around them before they even see it. Most fish that live far underwater rely almost entirely on their lateral line because it is so dark that their eyes are more of light sensors, rather than a visual tool.
I am now of the opinion that fish do see colour.
Cheers Rob