I've never know another black atheist woman other than myself there's not many of us unfortunately. But I would try interracialdating.com I think there would be more religiously open minded black women there.

I would recommend you be who you are to everyone. If your “friends” don’t accept you, they are not real friends. You should look for a match based on common interests, goals, chemistry and the like. If I limited my options to just purple atheists for example, I’d be a lonely woman.

That's gonna be really tough, because a new poll just confirmed that black women are the most religious group in America. I only know 1 black female atheist. The odds are abysmal!