The Collaborative International Dictionary
ash-grey
ash-grey \ash-grey\ adj. 1. pale gray; ash-colored.
Syn: ash-gray, ashy.
WordNet
Usage examples of "ash-grey".
Also I noted landmarks: a hump of withered bush, the skeleton form of a watchtower to my left, the ash-grey shape of what looked like a concrete bunker on the other side.
A sweep of mauve willow herb wilted beneath the smouldering ash-grey woods which bordered the ground.