saturation vs vividness

saturation and vividness both are nouns.

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

As nouns, saturation and vividness are synonyms defined as:

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

Other synonyms of saturation include chroma, intensity.

saturation (noun)	vividness (noun)
the act of soaking thoroughly with a liquid	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
the process of totally saturating something with a substance
a condition in which a quantity no longer responds to some external influence