Can't decide on colors

I think I want to use caron cakes to make a baby blanket. My only problem is what is a good color combination for a gender neutral blanket. We haven't found out the sex yet plus I don't like the typical blue or pink so I would prefer more neutral colors. Any suggestions for me? TIA

*Edited to add*

Found out anything made with caron cakes have to be hand washed which I don't want so I am open to suggestions of other yarn that can be thrown into the washer