indigo

Synthetic indigo, commonly used to dye bluejeans, can contain aniline, a manufacturing impurity that can slowly leach from clothing and penetrate skin, says Valenta.

From The Wall Street Journal ● Sep. 24, 2026

However, they contain relatively little indigo light, which appears to activate nonvisual opsins involved in biological processes beyond forming images.

From Science Daily ● Aug. 26, 2026

The reverse side of the Sydney Marathon medal shows a gold and indigo pattern designed by First Nations artist Ambrose Killian, widely commended for its ornate pattern.

From BBC ● Aug. 23, 2026

The orange glow from my Nesso lamp lit his face while the indigo sky pressed against the window behind him.

From Los Angeles Times ● Apr. 24, 2026

It was what had first attracted her to him that June day two years ago in Ibadan, the kind of rainy day that wore the indigo color of dusk although it was only noon.

From "Half of a Yellow Sun" by Chimamanda Ngozi Adichie

Amorpha, a-mor′fa, n. a genus of North American shrubs of the bean family, the false indigoes or lead-plants—also bastard or wild indigo.

From Chambers's Twentieth Century Dictionary (part 1 of 4: A-D) by Various

Jim's idea of the word "indigoes" was, that it drew its meaning partly from the color of the articles designated, and partly from their office.

From Sevenoaks by J. G. (Josiah Gilbert) Holland

The way I feel lately sometimes, honest, I think if I get to getting the indigoes much deeper, there's no telling where they'll land me.

From Every Soul Hath Its Song by Fannie Hurst

Strangely enough, in the vicinity of Denver in 1901, these birds were abundant and as easily approached and studied as are the indigoes of the East.

From Birds of the Rockies by Leander S. (Leander Sylvester) Keyser

The sky, low and heavy with tumbled cloud, was a study in greys and indigoes; the earth a still, uncharted waste.

From The Great Amulet by Maud Diver

Her paintings, in black-on-black or leavened by indigos or grays, include sharp lines reminiscent of architectural drawings, but also effusive layers and drips.

From New York Times ● Nov. 10, 2022

At the mixing station, Andrea Arriola-Pinto swirled light magentas, indigos and dark purples in four separate dishes like an artist mixing paint.

From Los Angeles Times ● Jun. 14, 2022

On São Tomé and Príncipe, two tiny islands off the west coast of Africa, Rayna Bell came across Lilliputian frogs, decked out in lime green, speckled in leopard print and daubed with indigos.

From Nature ● Oct. 6, 2015

Hallway carpets with comically giant indigos and carrot-orange walls conspire to create a visual jungle.

From New York Times ● Jun. 18, 2010

The moon paints the sky in deep violets and indigos.

From "The Belles" by Dhonielle Clayton