paleness vs skin colour

paleness and skin colour both are nouns.

Word	Noun	Adjective	Verb	Adverb
paleness	Yes	No	No	No
skin colour	Yes	No	No	No

As nouns, skin colour is a hypernym of paleness; that is, skin colour is a word with a broader meaning than paleness:

Other hypernyms of paleness include complexion, skin color.

As nouns, skin colour is a hypernym of paleness; that is, skin colour is a word with a broader meaning than paleness:

paleness: unnatural lack of color in the skin (as from bruising or sickness or emotional distress)
skin colour: the coloring of a person's face

Other hypernyms of paleness include complexion, skin color.

paleness (noun)	skin colour (noun)
being deficient in color	the coloring of a person's face
the property of having a naturally light complexion
unnatural lack of color in the skin (as from bruising or sickness or emotional distress)