Antonyms of adj gray-brown

1 sense of gray-brown

Sense 1
grey-brown, gray-brown, greyish-brown, grayish-brown -- (of brown tinged with grey)

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

Similarity of adj gray-brown

1 sense of gray-brown

Sense 1
grey-brown, gray-brown, greyish-brown, grayish-brown -- (of brown tinged with grey)
       => chromatic (vs. achromatic) -- (being or having or characterized by hue)