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

Kate wore an ivory silk crepe dress by British fashion house Alexander McQueen under her cobalt blue and red Royal Victorian Order mantle, or robe.

From Seattle Times

With the right container, simple is satisfying: Think of fat terra-cotta rounds overflowing with a single kind of scented-leafed geranium, or a yellow water lily floating in a cobalt blue urn.

From Seattle Times

The actress Jenna Ortega wore another one of his cobalt blue designs in a promotional photo for last weekend’s “Saturday Night Live.”

From New York Times

“California is giving every Black person $223,000 as reparations for slavery” was the headline rocketing around social media, moving from ruby red political circles to cobalt blue ones in no time.

From Los Angeles Times

An untitled work from 2020, more than 7 feet on a side, at first reads as a collage-like arrangement of small painted images casually strewn across a vivid field of cobalt blue.

From Los Angeles Times