ecru vs wheaten

ecru

noun
  • A beige colour. 

adj
  • Of a beige colour. 

wheaten

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

adj
  • Of, pertaining to, or made from wheat. 

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

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