Rubah, at first I thought you were talking about Squall Leonhart. I was going to reply, but then I thought, "Maybe I'm overlooking a character named Lionheart in a Final Fantasy game." This led me to do a search for some other Lionheart. Apparently you were talking about Squall. Squall had brown hair. As far as I can remember, Eiko would be the only Final Fantasy character with blue hair.

And Quistis had blonde hair. There was not a drop of red in it.