All the family has abnormal hair: Homer has three hairs, Marge has been grey as a fox since high-school, and Grandpa, in his old age, has the same colour of hair as Bart, Lisa, and Maggie. Is Bart Simpson's spiky blue hair genetic? Explore the genetics behind the Simpson kids' unique hair colors and discover the science of inheritance. Bart has yellow skin and blond spiky hair that matches the color of his skin, sports, and like the other characters of The Simpsons, has blue eyes.
He wears a vermillion shirt, blue shorts and blue sneakers with white socks. The kids don't have hair, that's just the shape of their heads. For whatever twisted genetic reason, this family doesn't grow hair until puberty.
So we'll see what color Bart's hair actually is in several hundred years (the show's been on for over a decade, and he's still 9 - clearly this boy ages slowly). Does Bart Simpson have yellow hair? The one thing that has remained fairly consistent, however, is their unnatural hair. Homer is stuck with comb-over squiggles, Marge keeps her blue beehive, and Lisa, Maggie, and Bart retain their spiky, yellow locks.
What color is Lisa Simpsons hair? Blond (yellow) Lisa Simpson/Hair color Does Bart have red hair? Appearance. Bart has yellow/blond spiky hair, although it's actually naturally pale red (but it stays yellow when he's out in the sun). How many hairs are on Homer Simpson's head? He is overweight and bald, except for a fringe of hair around the back and sides of his head and two curling.
"Bart, Lisa and Maggie have no hairlines - there's no line that separates their skin from their hair points. So the animators chose yellow - it's kinda skin, kinda hair.". Their hair is the exact same colour as their skin and there isn't even any sort of line to show where the skin ends and the hair begins.
Almost everybody else in The Simpsons has different coloured hair to their skin so it's not even that normal in that world. In fact it seems to be exclusive to Bart, Lisa and Maggie. This is actually joked about in one episode (I forget which) when Bart asks where his hair begins, saying "Head, head, hair, where's the border? ", at which point Lisa realizes she has the same problem and gasps "What are we?".