pea green vs virescent

pea green

adj

  • Of a yellowish green colour, like that of peas. 

noun

  • A medium green colour, like that of peas. 

virescent

adj

  • Green-like, greenish. 

  • Becoming green. 

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