cobalt blue

American  

noun

1. a deep blue to a strong greenish-blue color.

2. any of a number of pigments containing an oxide of cobalt.

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cobalt blue British  

noun

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

2. 1. a deep blue to greenish-blue colour

   2. ( as adjective )

      a cobalt-blue car

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Etymology

Origin of cobalt blue

First recorded in 1825–35

Compare meaning

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

• cobalt blue vs. royal blue

Example Sentences

Stringer built most of the studio’s interior himself, save for select furnishings and an Ikea shelving unit he painted cobalt blue to match the room’s colorful aesthetic.

From Los Angeles Times

Shasta with puffy white clouds drifting across a cobalt blue sky, Griffin recalled one of his worst days on the job.

From Los Angeles Times

The brothers themselves appeared in court via a video feed from a San Diego prison, wearing identical cobalt blue prison uniforms.

From BBC

Of course, in the fashion world, an item of clothing can't just be blue, so Laws says he thinks cornflower and cobalt blue will make a particular appearance across shows.

From BBC

Another of them, rendered almost invisibly in shellac on deep cobalt blue moiré, circles around to give the exhibition its trenchant title: “Now then, as I was about to say …”

From Los Angeles Times