colour vs appearance

colour and appearance both are nouns.

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

As nouns, appearance is a hypernym of colour; that is, appearance is a word with a broader meaning than colour:

colour: the appearance of objects (or light sources) described in terms of a person's perception of their hue and lightness (or brightness) and saturation
appearance: outward or visible aspect of a person or thing

Other hypernyms of colour include visual aspect.

As nouns, appearance is a hypernym of colour; that is, appearance is a word with a broader meaning than colour:

colour: an outward or token appearance or form that is deliberately misleading
appearance: outward or visible aspect of a person or thing

Other hypernyms of colour include visual aspect.

colour (noun)	appearance (noun)
a visual attribute of things that results from the light they emit or transmit or reflect	the act of appearing in public view
the appearance of objects (or light sources) described in terms of a person's perception of their hue and lightness (or brightness) and saturation	formal attendance (in court or at a hearing) of a party in an action
the timbre of a musical sound	pretending that something is the case in order to make a good impression
interest and variety and intensity	outward or visible aspect of a person or thing
an outward or token appearance or form that is deliberately misleading	a mental representation
(physics) the characteristic of quarks that determines their role in the strong interaction	the event of coming into sight
any material used for its color

colour (adjective)	appearance (adjective)
having or capable of producing colors

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