I was playing one of my families, and I was surprised. The first family I made a husband and wife in CAS and had them try for baby. The mother has dark blue eyes and the dad has brown, yet their daughter was born with light blue.
So, I tried another family. It was a woman with light blue eyes with a few kids and she tried for baby with her boyfriend. She was also the founder of her family, as was her boyfriend- who had dark blue, and they had a brown-eyed son. Is this typical game behavior? I don't have any cc so it's just Maxis skins and eyes.