colouration vs option

colouration and option both are nouns.

Word	Noun	Adjective	Verb	Adverb
colouration	Yes	No	No	No
option	Yes	No	No	No

As nouns, option is a hypernym of colouration; that is, option is a word with a broader meaning than colouration:

Other hypernyms of colouration include choice, pick, selection.

colouration (noun)	option (noun)
choice and use of colors (as by an artist)	the act of choosing or selecting
appearance with regard to color	one of a number of things from which only one can be chosen
the timbre of a musical sound	the right to buy or sell property at an agreed price; the right is purchased and if it is not exercised by a stated date the money is forfeited