The multi-colored blankets are nice, too. I've made several baby blankets out of these colors
(Caron Simply Soft Brite).
The moms were thrilled with them and said their babies were really attracted to the bright colors; plus, it doesn't look baby-ish, so it has longevity as a favorite blanket.
For my multi-colored blankets, I've always used all
the colors (regardless of whether someone thought it was a "girl color" or a "boy color" and regardless of whether it was for a boy or a girl).