colorant vs complexion

colorant

complexion

noun
  • Outlook, attitude, or point of view. 

  • The quality, colour, or appearance of the skin on the face. 

  • An arrangement. 

  • The outward appearance of something. 

verb
  • To give a colour to. 

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