One day when Albus and Lily were little they were coloring in the living room while Teddy was baby sitting. Albus couldn't decide what color he should use to color the petals on his flower so he asked his sister and role model.
"Hey guys what's your favorite color?"
"Blue," said Lily
"Red," said Teddy.
Albus couldn't imagine why they would pick such ordinary and boring colors but he didn't understand until much later that to each other those colors could never be boring
AN: incase you don't get why it's the others hair color duh!