colorful (US) / colourful vs motley

colorful (US) / colourful

motley

adj
  • Comprising greatly varied elements, to the point of incongruity. 

  • Having many colours; variegated. 

noun
  • A jester's multicoloured clothes. 

  • An incongruous mixture. 

  • A jester; a fool. 

How often have the words colorful (US) / colourful and motley occurred in a corpus of books? (source: Google Ngram Viewer )