indigo blue

American  

noun

1. indigo.

2. Also called indigo, indigotin.  a dark-blue, water-insoluble, crystalline powder, C 16 H 10 N 2 O 2 , having a bronzelike luster, the essential coloring principle of which is contained along with other substances in the dye indigo and which can be produced synthetically.

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indigo blue British  

noun

1. the full name for indigo indigo

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Other Word Forms

• indigo-blue
  adjective

Etymology

Origin of indigo blue

First recorded in 1705–15

Example Sentences

See Examples For:

indigo blue

Models showcased dresses in indigo blue, on a deep blue catwalk under the cavernous reinforced concrete dome of the futuristic building designed by Brazilian architect Oscar Niemeyer.

From Reuters ● Sep. 25, 2023

With cyanotypes, also called sun prints, your leaf makes a white silhouette on photo-chemical-treated paper or fabric that turns the deepest indigo blue.

From Seattle Times ● Sep. 15, 2023

Dressed for battle in chain mail and boots, Harris trails an indigo blue robe that dramatically flows behind her, as if she just strode into commanding view.

From Los Angeles Times ● Jul. 6, 2022

“Japanese Book” portrays a 19th-century book whose creased and worn indigo blue cover seems like a coda to Ms. Celmins’s images of night skies, waves and clouds.

From New York Times ● Sep. 26, 2019

His fingernails, too, are blue, an indigo blue.

From "Dreaming in Cuban" by Cristina García