The Collaborative International Dictionary of English v.0.48:
yellow-brown \yel"low-brown`\, adj. Having a color intermediate between yellow and brown. Syn: amber, brownish-yellow. [WordNet 1.5]WordNet (r) 3.0 (2006):
yellow-brown adj 1: of a medium to dark brownish yellow color [syn: amber, brownish-yellow, yellow-brown]