Yes, blaze orange. If I'm on a stand and a buck steps out I won't take the shot if I know someone is on the other side of that deer because I can see them. I may not be delighted about the situation, but I won't press the shot.
If someone is on the other side of that deer and I can't see them because they blend in ... well, if can't see them I can't be expected to know they're there.
Just like riding at night without lights. If the motorist can't see the cyclist, then the motorist can't be expected to know the cyclist is there.