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indigo blue

noun
1.
indigo (def 4).
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.
Origin
1705-1715
1705-15
Related forms
indigo-blue, adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples from the web for indigo blue
  • Guest rooms contain exposed brick, which makes the indigo blue colors and white deco-style lacquered furniture pop.
  • Recently killed specimens turn a bright indigo blue.
  • In late summer the leaves have died back leaving the stem upright with a cluster of indigo blue berries at the tip.
British Dictionary definitions for indigo blue

indigo blue

noun, adjective (indigo-blue when prenominal)
1.
the full name for indigo (sense 1), indigo (sense 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
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Word Value for indigo

8
10
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