ROGET THESAURUS
Russet
Gray
N
gray, neutral tint, silver, pepper and salt, chiaroscuro, grisaille, Payne's gray, black, gray, grey, iron-gray, dun, drab, dingy, leaden, livid, somber, sad, pearly, russet, roan, calcareous, limy, favillous, silver, silvery, silvered, ashen, ashy, cinereous, cineritious, grizzly, grizzled, slate-colored, stone-colored, mouse-colored, ash-colored, cool.
Brown
N
brown, bister ocher, sepia, Vandyke brown, brown, bay, dapple, auburn, castaneous, chestnut, nut-brown, cinnamon, russet, tawny, fuscous, chocolate, maroon, foxy, tan, brunette, whitey brown, fawn-colored, snuff-colored, liver-colored, brown as a berry, brown as mahogany, brown as the oak leaves, khaki, sun-burnt, tanned.