There is the black which is old and the black which is fresh, lustrous
black and dull black, black in sunlight and black in shadow. For the old
black, one must use an admixture of red; for the fresh black, an
admixture of blue; for the dull black, an admixture of white; for
lustrous black, gum must be added; black in sunlight must have grey
reflections.
_Hokusai._