I'm more worried about close quarters. . and brush. Somebody sees color and thinks "There he is. Time to take a snap shot." You have to be quick where I live. Some guys aren't also careful.Most camo looks brown at any sort of distance. I routinely wear brown and charcoal/grey. If some dipshit is going to check you out through his scope or send one at the crack of of a stick, he's not going to do so based on what you are or are not wearing.
I typically avoid black because I feel it is a very eye-catching color, not so much that I'm worried about looking like a bear.
On the other hand,
I was archery elk hunting a few years ago when I watched a muzzleloader wielding bear hunter who was also carrying a pistol, mace himself right outside the parking lot. His companion said he had already done it once earlier. That's the person you have to watch out for...