crimson vs ruby-red

crimson

adj
  • Having a deep red colour. 

  • Immodest. 

noun
  • A deep, slightly bluish red. 

verb
  • To dye with crimson or deep red; to redden. 

  • To become crimson or deep red; to blush. 

ruby-red

How often have the words crimson and ruby-red occurred in a corpus of books? (source: Google Ngram Viewer )