indigo blue


noun
  1. Also called indigo, indigotin. a dark-blue, water-insoluble, crystalline powder, C16H10N2O2, 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.

Origin of indigo blue

1
First recorded in 1705–15

Other words from indigo blue

  • in·di·go-blue, adjective

Words Nearby indigo blue

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024

How to use indigo blue in a sentence

British Dictionary definitions for indigo blue

indigo blue

noun, adjective(indigo-blue when prenominal)
  1. the full name for indigo (def. 1), indigo (def. 3)

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012