carmine vs ruby-colored

carmine

noun
  • A purplish-red pigment, made from dye obtained from the cochineal beetle; carminic acid or any of its derivatives. 

  • A purplish-red colour, resembling that pigment. 

  • carmine 

adj
  • Of the purplish red colour shade carmine. 

ruby-colored

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