1. slate blue - Noun
2. slate blue - Adjective
slate blue (countable and uncountable, plural slate blues)
A dark, bluish-grey colour.
slate blue:
slate blue (not comparable)
Of a dark, bluish-grey colour.
He has a Pac-Man tattoo on his right arm, citation citation as well as a tattoo in honor of the demise of SNK on his back. citation His eyes are a shade of slate blue. Source: Internet
Swamp buffalo have a grey skin at birth, but become slate blue later. Source: Internet
The greens are olive, blues are slate blue, and red is an even deeper wine colour. Source: Internet