jade green vs viridity

jade green and viridity both are nouns.

Word	Noun	Adjective	Verb	Adverb
jade green	Yes	No	No	No
viridity	Yes	No	No	No

As nouns, viridity is a hypernym of jade green; that is, viridity is a word with a broader meaning than jade green:

jade green: a light green color varying from bluish green to yellowish green
viridity: green color or pigment; resembling the color of growing grass

Other hypernyms of jade green include green, greenness.

jade green (noun)	viridity (noun)
a light green color varying from bluish green to yellowish green	green color or pigment; resembling the color of growing grass