What is another word for "dun"?

Roget's Thesaurus (1911) lists these synonyms for "dun": account, accredit, and, ash-colored, ashen, ashy, black, calcareous, capital, card, chiaroscuro, cinereous, cineritious, circular, cool, creance, credit, creditor, debenture, dingy, drab, draft, duplicate, favillous, floating, fly, give, gray, grey, grisaille, grizzled, grizzly, intrust, iron-gray, keep, kite, leaden, lender, lessor, letter.