BLUES is a playable word

blue Scrabble® Dictionary

adjective
bluer, bluest
having the color of the clear sky
verb
blued, blueing or bluing, blues
to make blue
21 Playable Words can be made from "BLUES"
   2-Letter Words (4 found)
   3-Letter Words (9 found)
   4-Letter Words (6 found)
   5-Letter Words (2 found)