1
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adj. ADV. very | quite, slightly ADJ. dark, deep, rich | light, pale | bright, brilliant, vivid a brilliant blue sky her vivid blue eyes | cobalt, navy, royal, slate a navy blue jumperCOLOUR
Oxford Collocations Dictionary
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In addition to the idioms beginning with BLUE, Also see BETWEEN A ROCK AND A HARD PLACE (DEVIL AND DEEP BLUE SEA); BLACK AND BLUE; BOLT FROM THE BLUE; HAVE THE BLUES; INTO THIN AIR (THE BLUE); LIKE GREASED LIGHTNING (A BLUE STREAK); ONCE IN A BLUE MOON; OUT OF A CLEAR BLUE SKY; TALK ONE'S ARM OFF (A BLUE STREAK; UNTIL BLUE IN THE FACE).
American Heritage Idioms