So many colors for solid color wall paint, but no black?

CC items usually have the same problem. I read a tutorial on making CC that said you shouldn't use actual black when making black clothing, but instead use really dark brown or really dark grey or something. It explained why a lot of CC isn't quite black, but it kind of annoys me. Sometimes I just want actual black. I mean, I'm not asking for Vantablack or anything, but true black can be really nice sometimes.