chromatic color vs coloring

chromatic color and coloring both are nouns.

Word	Noun	Adjective	Verb	Adverb
chromatic color	Yes	No	No	No
coloring	Yes	No	No	No

As nouns, coloring is a hypernym of chromatic color; that is, coloring is a word with a broader meaning than chromatic color:

chromatic color: a color that has hue
coloring: a visual attribute of things that results from the light they emit or transmit or reflect

Other hypernyms of chromatic color include color, colour, colouring.

chromatic color (noun)	coloring (noun)
a color that has hue	the act or process of changing the color of something
	a visual attribute of things that results from the light they emit or transmit or reflect
	a digestible substance used to give color to food