I like the way C3shooter thinks, and a couple others. When I started hunting in the 40's as a kid in Iowa I wore whatever it took to stay warm. Jeans and however many sweaters and coats to stay warm, in whatever color my mother had for me, or got handed down from my (ugh) sister. Kidding!! When I got out of college and moved to Montana w/the Forest Service on the Flathead Nat. Forest, I hunted elk, goat, bear, antelope Iin the Red Rock Cent. area near West Yellowstone) in jeans, etc. Colors never seemed to make much difference. I did take a more precautions duck hunting. I had a WW II - or maybe Korea - OD field jacket that I wore duck hinting. And a brown cap to help hide my face. Don't look up! Best not to move, either.
Now, influenced somewhat by my #2 son, I guess I use MossyOak breakup for most of my hunting. Kind of helps that I work part time at Bass Pro and get my discount on all the neat Read Head camo gear. No doubt it probably helps in the woods a little bit, but I still believe movement, or the rate of movement, will ruin your chances regardless of what you are wearing.