Definition of water blue in English:

water blue

noun

  • 1A pale shade of blue.

  • 2Any of various dyes (in later use chiefly aniline dyes) imparting a blue colour.

adjective

  • Designating a pale shade of blue; of or having this colour.

Origin

Early 18th century; earliest use found in John Dart (d. 1730), antiquary. From water + blue.

Pronunciation

water blue

/ˌwɔːtə ˈbluː/