Except for black, which other hair colours do 당신 think will suit Magnus?

This is just my personal opinion but I think he'd look great with a rich 물오리, 청록 color. I think it would look very interesting with his eye color, too.

무지개, 레인 보우 coloured. That's how he's described in the books, unless I'm mixing up here, and I think it 슈츠 him.

Purple