I don't know of any black Nazis and don't think there could be any. See this compilation of answers from u/gynnis-scholasticus : https://www.reddit.com/r/AskHistorians/comments/y5t7yu/what_did_nazis_think_of_black_people/isq1a57

(Linked to answers from u/commiespaceinvader, u/gerardmenfin and u/metherke)

That is a photo of Hitler and Hans von Tschammer und Osten at Hans' 50th birthday celebration. It appears he may have a very dark tan or sunburn here, and it's more obvious if you look up other photos from the birthday celebration. Hans was German gentry.

Edit: looking at other photos I get the impression the room was pretty dark and there's a bright flash focused on Hitler so while I'm no photographer I'm guessing that screws with the color balance (or whatever you'd call it for a black and white photo)