Ned Stark, from the book series "A Song of Ice and Fire" by George R.R. Martin and its TV adaptation "Game of Thrones," is described as having dark brown hair.
It's often described as "raven black" or "black as a raven's wing," but this is more of a poetic description than a literal one.
In the TV show, Sean Bean, the actor who portrays Ned, has dark brown hair, which matches the book description.
