The typical Norse Scandinavian viking had long flowing hair, ranging in the usual colors of blonde, brown, red and black.
The darker the hair, the uglier the person was regarded.
They kept their hair long as it showed spiritual and physical potency, as hair is something that grows out from within the person.
Vikings prided themselves on their grooming, as a neat and kept person was more respectable than an unwashed, scraggy person.
I just went deeper into this hair thing.