- complementary
Colour complementary(Colour colour)
Undocumented in source. Be warned that the author may not have intended to support it.
- contrast
Precision contrast(Colour1 colour1, Colour2 colour2)
Undocumented in source. Be warned that the author may not have intended to support it.
- relativeLuminosity
Precision relativeLuminosity(Colour colour)
Undocumented in source. Be warned that the author may not have intended to support it.