colored vs colorful

colored is a noun but colorful is not a noun.

Word	Noun	Adjective	Verb	Adverb
colored	Yes	Yes	No	No
colorful	No	Yes	No	No

As adjectives, colored and colorful are synonyms defined as:

colored and colorful: having color or a certain color; sometimes used in combination

Other synonyms of colored include coloured, colourful.

colored (noun)	colorful (noun)
a United States term for Blacks that is now considered offensive

colored (adjective)	colorful (adjective)
having color or a certain color; sometimes used in combination	having much or varied color
(used of color) artificially produced; not natural	having color or a certain color; sometimes used in combination
having skin rich in melanin pigments;	striking in variety and interest
favoring one person or side over another