cobalt blue

Origin of cobalt blue

First recorded in 1825–35 Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for cobalt blue

Contemporary Examples of cobalt blue

Historical Examples of cobalt blue

British Dictionary definitions for cobalt blue

cobalt blue

  1. 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