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cobalt blue

noun

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


cobalt blue

noun

  1. Also calledThénard'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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Word History and Origins

Origin of cobalt blue1

First recorded in 1825–35
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Compare Meanings

How does cobalt blue compare to similar and commonly confused words? Explore the most common comparisons:

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Example Sentences

Then it found him: an obsessive, cobalt-blue-eyed Scot by the name of Alex Ferguson.

And, just look at "all the cobalt-blue energy on the runways."

A mixture of cobalt blue and flowers of zinc with some yellow pigment.

The rich cobalt blue, called bleu de roi, of which there were two varieties, the darker being designated gros bleu.

He walked down wearily and said: "Cobalt blue" to his own door after a furtive look up and down the hall.

The decoration was painted in cobalt blue upon the unburned surface of the enamel.

A brilliant black may also be obtained by a mixture of cobalt blue with the oxides of manganese and iron.

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