Paris green vs yellow green

Paris green and yellow green both are nouns.

Word	Noun	Adjective	Verb	Adverb
Paris green	Yes	No	No	No
yellow green	Yes	No	No	No

As nouns, Paris green and yellow green are synonyms defined as:

Other synonyms of Paris green include chartreuse, pea green, yellowish green.

Paris green (noun)	yellow green (noun)
a shade of green tinged with yellow	a shade of green tinged with yellow
a toxic double salt of copper arsenate and copper acetate