Some color scheme examples from searching online

I'm not suggesting black, grey, & yellow, but here's sorta what I have in mind. You just give everyone a color scheme and they pick up something cute/comfortable/flattering to wear. Prints are ok. I mean, not everyone should wear them, but it will still make it look good. Here's an example I found online. Their colors were navy, brown, and white (with jeans) They look nice without looking matchy matchy.