The Collaborative International Dictionary of English v.0.48:

Ocherous \O"cher*ous\, Ochreous \O"chre*ous\, a. [Cf. F.
   ocreux.]
   Of or pertaining to ocher; containing or resembling ocher;
   as, ocherous matter; ocherous soil.
   [1913 Webster]

Moby Thesaurus II by Grady Ward, 1.0:

60 Moby Thesaurus words for "ocherous":
   apricot, aureate, auric, beige, buff, buff-yellow, canary,
   canary-yellow, carrot-colored, carroty, citron, citron-yellow,
   cream, creamy, ecru, fallow, flaxen, gilded, gilt, gold,
   gold-colored, golden, lemon, lemon-yellow, luteolous, lutescent,
   ocherish, ochery, ochreous, ochroid, ochrous, ochry, old gold, or,
   orange, orange-hued, orange-red, orangeish, orangey, peach,
   primrose, primrose-colored, primrose-yellow, pumpkin, red-orange,
   reddish-orange, reddish-yellow, saffron, saffron-colored,
   saffron-yellow, sallow, sand-colored, sandy, straw, straw-colored,
   tangerine, xanthic, xanthous, yellow, yellowish