I think there's a lot of red and black: Pro Athletics, Woodlands Elite, GymTyme, Tribe, KC Cheer, Heat Athletics, Star Athletics, FAME, I could go on forever. Now both Cheers and More and All Star Legacy have taken out the baby blue to become just red and black.
I would love to see more teams use something other than white or black as their primary color, but I feel like a lot of teams use black as one of their team colors. I also think there's some colors (like pink or yellow for example) that I wouldn't want to see used as a primary uniform color.