turquoise vs blueness

turquoise and blueness both are nouns.

Word	Noun	Adjective	Verb	Adverb
turquoise	Yes	No	No	No
blueness	Yes	No	No	No

As nouns, blueness is a hypernym of turquoise; that is, blueness is a word with a broader meaning than turquoise:

turquoise: a shade of blue tinged with green
blueness: blue color or pigment; resembling the color of the clear sky in the daytime

Other hypernyms of turquoise include blue.

turquoise (noun)	blueness (noun)
a shade of blue tinged with green	blue color or pigment; resembling the color of the clear sky in the daytime
a blue to grey green mineral consisting of copper aluminum phosphate