Here’s the biggest question I get when I’m trying to convince a client (who’s about to spend a ton of money on new windows) to go with black frames;
What colour will I paint my trim?
Easy! Either something to blend in with the black frame or something to blend in with your wall. Black frames with black or dark trim looks great. Black frames with off white trim and an off white wall also looks great. Black frames with white trim and dark wall doesn’t look so great. The idea here is not to have too many contrasting colours next to each other.