blood-red vs ruddy

blood-red and ruddy both are adjectives.

Word	Noun	Adjective	Verb	Adverb
blood-red	No	Yes	No	No
ruddy	No	Yes	No	No

As adjectives, blood-red and ruddy are synonyms defined as:

blood-red and ruddy: of a color at the end of the color spectrum (next to orange); resembling the color of blood or cherries or tomatoes or rubies

Other synonyms of blood-red include carmine, cerise, cherry-red, cherry, crimson, red, reddish, ruby-red, ruby, scarlet.

blood-red (adjective)	ruddy (adjective)
of a color at the end of the color spectrum (next to orange); resembling the color of blood or cherries or tomatoes or rubies	of a color at the end of the color spectrum (next to orange); resembling the color of blood or cherries or tomatoes or rubies
	inclined to a healthy reddish color often associated with outdoor life