It's the rarest hair color, but not in fiction, apparently, so lets see your gingers. I know you have some.
yes, he dyes his hair, but hey.
Oddly enough, I'm also going to cheat twice here, and mention that Therese George used to be a ginger, but her hair got darker, it still looks orangey in the spring and summer though.
Alicia's hair turns copper colored if she gets enough sunshine, but she hasn't in quite a long time.