gray-white vs greyish-white

gray-white and greyish-white both are adjectives.

Word	Noun	Adjective	Verb	Adverb
gray-white	No	Yes	No	No
greyish-white	No	Yes	No	No

As adjectives, gray-white and greyish-white are synonyms defined as:

Other synonyms of gray-white include grayish-white, grey-white.

gray-white (adjective)	greyish-white (adjective)
of white tinged with grey	of white tinged with grey