emerald green vs sage green

emerald green

noun
  • A rich green colour, like that of an emerald. 

  • A durable vivid green pigment made from copper arsenate. 

adj
  • Of a rich green colour, like that of an emerald. 

sage green

noun
  • A greyish green colour, like that of sage. 

adj
  • Of a greyish green colour, like that of sage. 

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