chroma vs vividness

chroma and vividness both are nouns.

Word	Noun	Adjective	Verb	Adverb
chroma	Yes	No	No	No
vividness	Yes	No	No	No

As nouns, chroma and vividness are synonyms defined as:

chroma and vividness: chromatic purity: freedom from dilution with white and hence vivid in hue

Other synonyms of chroma include intensity, saturation.

chroma (noun)	vividness (noun)
chromatic purity: freedom from dilution with white and hence vivid in hue	chromatic purity: freedom from dilution with white and hence vivid in hue
	interest and variety and intensity