1.  colouration(n = noun.attribute) color, coloration, colour - the timbre of a musical sound; "the recording fails to capture the true color of the original music"
is a kind of quality, timber, timbre, tone

2.  colouration(n = noun.attribute) coloration - appearance with regard to color; "her healthy coloration"
is a kind of color, coloring, colour, colouring
has particulars: hair coloring, pigmentation, depigmentation, protective coloration

3.  colouration(n = noun.act) coloration - choice and use of colors (as by an artist);
is a kind of choice, option, pick, selection

colouration, var. of COLORATION.