Antonyms of adj orange-brown

1 sense of orange-brown

Sense 1
orange-brown -- (of brown tinged with orange)

INDIRECT (VIA chromatic) -> achromatic, neutral -- (having no hue; "neutral colors like black or white")

Similarity of adj orange-brown

1 sense of orange-brown

Sense 1
orange-brown -- (of brown tinged with orange)
       => chromatic (vs. achromatic) -- (being or having or characterized by hue)