Noah Webster's Dictionary (n.) of a dull yellowish brown color, like things tanned, or persons who are sunburnt; as, tawny Moor or Spaniard; the tawny lion.

Multi-Version Concordance Tawny (1 Occurrence) Judges 5:10 "Tell of it, you who ride on tawny asses, you who sit on rich carpets and you who walk by the way. (DBY RSV)