Camoflaging for deer and most other mammals is a skill, not a dress code.
Gotta hand it to those guys, like Wild Bill Bucks, that have it figured out.
Funny story:
I was squirrel hunting in a freinds woods: blue jeans, plain jacket, small game vest with orange on it and an orange camo hat. While I sat at the base of a tree a deer (smallish 6 point) came through browsing, same time as Mr. squirrel made himself available. Shot the squirrel with my 10/22 rifle, one shot, and Mr. deer kept about his business as I stayed still. Minutes later the deer got nervous and alert then left the area. A bowhunter in head to toe camo, who was tresspassing in a tree stand about 150 yards away, was coming over to chew me out for disturbing the woods, and ruining his hunting! I still grin about the whole thing 15 or so years later.