ash-colored vs ashy

ash-colored

adj
  • Of the color of ashes; pale grey. 

ashy

adj
  • Resembling ashes (especially in colour); (of a person’s complexion) unusually pale as a result of strong emotion, illness, etc. 

  • Having dry or dead skin (therefore discolored). 

  • Comprising, containing, or covered with ash. 

How often have the words ash-colored and ashy occurred in a corpus of books? (source: Google Ngram Viewer )