It's uhmmm too simple to explain.....
One of the following colors (maybe two if you're good):
White
Grey
Black
Matched with any other color you can think of, yes even pink, it's just your choice on what you want to wear, just match with either black loafers, or some nice sneakers. For me, I can sport green, and even purple sometimes. I have wore a pink-ish polo shirt with grey slacks and I got lots of comment from women about how bold I was. Go figure, haha.
Uhmmm you could pull off black and white, grey and black if you wanted. I never tried white and grey cuz I think it's too plain.