hue vs pigment

hue

noun
  • A color, or shade of color; tint; dye. 

  • A character; aspect. 

  • The characteristic related to the light frequency that appears in the color, for instance red, yellow, green, cyan, blue or magenta. 

pigment

noun
  • Any color in plant or animal cells 

  • A dry colorant, usually an insoluble powder 

verb
  • To add color or pigment to something. 

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