I shot just as many deer wearing blue jean's and a red whatever "plaid" flannel shirt when I first got into bow hunting as I do now in full camo, doesn't matter what you wear for the most part, if you hide a tad and don't move, the deer can't see you.
Camo is more for the hunter then for the deer, I wear it to look the "part" more then for any other reason.
I break it up, black jeans and a camo shirt or differing camo top and bottom, best to worry more about breaking up the human form more then what color is used to do it.
If you want to spend top dollar on camo, well nothing wrong with that either!