Words for Gray in Classical Greek
Perhaps the best known word is γλαυκός blue gray the color γλαυκῶπις of the goddess Athena's eyes but also the pale gray green or bluish green of leaves and plants, a changeable shifting gray.
Γραῖος is sometimes translated as gray but it is the gray of aging fading things and beings believed by scholars to be a contraction of γεραίος
Ashen white gray is μέλινος.
Ὄρφνινος is the color of darkness a gloomy night Ὄρφνᾱ in Doric and Ὄρφνη in Attic.
Πολιός is gray too and probably cognate to the word for dove πελεια and πελλός.
Φαιός is a deep dark dun gray but ψᾱρός is the speckled gray of a starling.