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

Through the window of an upper floor office in West Hollywood, the sky changed from cyan to navy and then indigo blue.

From Los Angeles Times

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

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

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

Aside from traditional colors like white, biscuit and gray, newer cast-iron sink colors can include indigo blue, black plum and caviar.

From Seattle Times