sky blue

WordReference Random House Unabridged Dictionary of American English © 2026

sky′ blue′, 

1. the color of the unclouded sky in daytime;
   azure.

• 1720–30

sky′-blue′, adj. 

Collins Concise English Dictionary © HarperCollins Publishers::

sky blue noun

1. a light or pale blue colour
2. (as adjective): a sky-blue jumper