brunette vs copper-colored

brunette

noun
  • A person, especially female, with brown or black hair and, often, dark eyes and darkish or olive skin. 

adj
  • of a dark color or tone. 

  • having brown or black hair and, often, dark eyes and darkish or olive skin. 

copper-colored

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