indigo

Noun
  1. A blue dye obtained from plants or made synthetically (synset 114779039)
  2. Deciduous subshrub of southeastern Asia having pinnate leaves and clusters of red or purple flowers;
    A source of indigo dye (synset 112556545)
  3. A blue-violet color (synset 104977665)
Adjective
  1. Having a color between blue and violet (synset 300399434)
    "indigo flowers"

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