Strong's Definition
from an unused root meaning to be warm, i.e. (by implication) sunburnt or swarthy (blackish)
KJV Usage: brown
STEPBible — Tyndale Abridged Hebrew Lexicon
חוּם (chum) — darkened. dark colour, darkened, dark brown or black
UBS Dictionary of Biblical Hebrew
UBS Dictionary of Biblical Hebrew © United Bible Societies, licensed CC BY-SA 4.0.
Brown-Driver-Briggs Hebrew Lexicon
חוּם adj. darkened, dark brown or black, only of colour of sheep base