I don't care if a man is purple as long as you are nice, respectful and cleanly! The ONLY issue might be size. I know that, in itself, probably sounds racist or something, but I don't mean it to be. In my experience, most AA men I have seen are VERY well endowed. My equipment is only about 6 or 7 inches deep! It's just how I am built. Anything over 7 to 8 and it starts to hurt.
I would hate for someone to be dissapointed if I couldn't give my best bbbj either. So, for me, I think the rule should be...if you have exceptionally large long equipment you should mention that! Black, white or purple!
And if someone showed up at my incall in a pimp suit, whatever color they were.... I'd probably do em' for free! That would just be the shit!!