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cobalt blue

a deep blue to a strong greenish-blue color.
any of a number of pigments containing an oxide of cobalt.
Also called king's blue, Thenard's blue.
Origin of cobalt blue
1825-35 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for cobalt blue
  • Shades of a cobalt blue fresco can be found above the stepped altar.
  • The color is magnificent, with the cobalt blue sky in the background and the warm light on the lion.
  • The dark cobalt blue of the ocean was the only color the artists were unable to find in stone.
  • Harder to find colors include sea foam and olive green, aqua, cobalt blue and amber.
  • It is all cobalt blue, with yellow trim around its eyes and bill, and there is more than a yard of it.
  • Beside them were battered cobalt blue trucks-the ones used to whisk away prisoners and detainees.
  • cobalt blue is the characteristic color of stoneware decoration.
  • These pieces were usually oversized and frequently decorated with elaborate and unusual cobalt blue designs.
  • Its cobalt blue color, biologically diverse alpine setting and remarkable water clarity is legendary.
  • Its color is a deep cobalt blue with generally a high gloss, as if the flow had been given a coat of blue varnish.
British Dictionary definitions for cobalt blue

cobalt blue

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
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