Who's your 가장 좋아하는 아니메 character with multi-colored hair?

death the kid ~

Well, this one is obvious.
It's Mephisto.
His hair is yellow at the 상단, 맨 위로 then fades to dark purple. It's light purple at the 상단, 맨 위로 in the anime, though.

Sohma Hatsuharu from Fruits Basket has white and black hair.

shura from blue exorcist!
shez just awesome!

Quele Sellier from Dakara Boku wa, H ga Dekinai

Yugi bro

Yugi Muto From Yugioh