What is another word for "roan"?

Roget's Thesaurus (1911) lists these synonyms for "roan": and, ash-colored, ashen, ashy, black, calcareous, chiaroscuro, cinereous, cineritious, cool, dingy, drab, dun, favillous, gray, grey, grisaille, grizzled, grizzly, iron-gray, leaden, limy, livid, neutral, pearly, pepper, russet, sad, salt, silver, silvery, somber, tint.