Board Thread:Off Topic/@comment-27082610-20160429173411/@comment-27425734-20160501222026

I don't think there really is a rule on that, per say. I mean, you've got people with green hair like Emerald and Oobleck, and magenta hair like Nolan. And, have you seen Neptune's bright blue hair? As for dyed hair, I'm presuming that it exists, but, correct me if I'm wrong, we don't know of anyone specifically that dyes their hair do we? So, I think hair color can be anything you want it to be.