A look at seal dun horses around the world and on a variety of different breeds.
As with most dilutions, the dun dilution on a seal brown coat is not as strong as the animals with a lighter coat, and can be difficult to visually identify. Also called olive grullo or muddy grullo, wolf dun body hair ranges from from a muddy-brown to an almost greenish color, while mane, tail, points and primitive markings are dark brown to black.
