That's one of the reasons I never change anyone's hair color in my TJ game as I want the hair colors to stay original to the family. If a mom or anyone else for that matter, colors her hair then any children can then be born with it. Which makes no sense at all because in RL people color their hair all the time and it's not passed on genetically. But that's the sims 3 genes for you! In Isla Paradiso(IP)and in Appaloosa Plains(AP), there are families that have dead parents as ghosts in the game, which means their grandchildren can inherit their hair, eyes, and skin color. In IP it's Matteo Torres that passes on his parent's death by drowning turquoise hair. (But no blue skin for either child). And in AP it's the Riffin family that can pass on their parents death by fire red hair, skin, and eye color. A son of Calvin's got both the red skin and red hair!