cobalt blue

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noun

a deep blue to a strong greenish-blue color.
any of a number of pigments containing an oxide of cobalt.

Nearby words

  1. cobaea,
  2. cobalamin,
  3. cobalt,
  4. cobalt 60,
  5. cobalt bloom,
  6. cobalt bomb,
  7. cobalt green,
  8. cobalt violet deep,
  9. cobalt violet light,
  10. cobalt yellow

Origin of cobalt blue

First recorded in 1825–35


Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for cobalt blue


British Dictionary definitions for cobalt blue

cobalt blue

noun

Also called: Thénard's blue any greenish-blue pigment containing cobalt aluminate, usually made by heating cobaltous sulphate, aluminium oxide, and phosphoric acid together
  1. a deep blue to greenish-blue colour
  2. (as adjective)a cobalt-blue car
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012