Light green and yellow can be nice, neutral colors for babies. Especially if you get them in the right tones. Of course, that's a matter of personal preference.
I especially like ecru. From what I have seen, white seems frowned upon. Perhaps a rejection of the past and in favor of brighter colors which sometimes look garish, to me, on babies. I made my grandson a blanket, jacket, and bonnet in ecru with pale wool embroidery.
Dianne