Seems silly to put on a full set of camo clothes and then plunk an orange hat on your head, (100 sq inches) but that's what AL requires in areas open to gun deer huntng.
Deer's eyes are different than human's and they don't perceive red and orange the way we do. To them it's just another shade of green.
Orange clothing is not required in CA, but I wear orange or orange camo clothing when out in the woods during rifle season whether hunting or not. The only exception is turkey hunting.