tinge vs color in

tinge is a noun but color in is not a noun.

Word	Noun	Adjective	Verb	Adverb
tinge	Yes	No	Yes	No
color in	No	No	Yes	No

As verbs, color in is a hypernym of tinge; that is, color in is a word with a broader meaning than tinge:

Other hypernyms of tinge include color, colorise, colorize, colour, colour in, colourise, colourize.

tinge (noun)	color in (noun)
a pale or subdued color
a slight but appreciable amount

tinge (verb)	color in (verb)
color lightly	add color to
affect as in thought or feeling