colour vs purple

colour and purple both are nouns.

Word	Noun	Adjective	Verb	Adverb
colour	Yes	Yes	Yes	No
purple	Yes	Yes	Yes	No

As verbs, purple is a hyponym of colour; that is, purple is a word with a more specific, narrower meaning than colour:

As verbs, purple is a hyponym of colour; that is, purple is a word with a more specific, narrower meaning than colour:

colour (noun)	purple (noun)
a visual attribute of things that results from the light they emit or transmit or reflect	(Roman Catholic Church) official dress of a cardinal; so named after the Tyrial purple color of the robes
the appearance of objects (or light sources) described in terms of a person's perception of their hue and lightness (or brightness) and saturation	a color between red and blue
the timbre of a musical sound	(in ancient Rome) position of imperial status
interest and variety and intensity
an outward or token appearance or form that is deliberately misleading
(physics) the characteristic of quarks that determines their role in the strong interaction
any material used for its color

colour (adjective)	purple (adjective)
having or capable of producing colors	of a color intermediate between red and blue
	belonging to or befitting a supreme ruler
	excessively elaborate or showily expressed

colour (verb)	purple (verb)
change color, often in an undesired manner	color purple
add color to	become purple
affect as in thought or feeling
give a deceptive explanation or excuse for
decorate with colors
modify or bias