flavescent vs wheaten

flavescent

adj
  • yellow-ish in colour, or turning yellow 

wheaten

adj
  • Of a pale yellow-beige colour, like that of wheat. 

  • Of, pertaining to, or made from wheat. 

noun
  • A pale yellow or beige colour, like that of wheat. 

How often have the words flavescent and wheaten occurred in a corpus of books? (source: Google Ngram Viewer )