1. A blue-violet colour
   "The night sky was a deep indigo"
    
2. A blue dye obtained from plants or made synthetically
   "Indigotin is the main component of indigo dye used in blue jeans";
   - anil, indigotin
    
3. Deciduous subshrub of southeastern Asia having pinnate leaves
   "The indigo plant's purple flowers contrasted with its silvery foliage";
   - indigo plant, Indigofera tinctoria

1. Having a colour between blue and violet
   "indigo flowers"

Derived forms: indigos

See also: colored [US], colorful [US], coloured [Brit, Cdn], colourful [Brit, Cdn]

Type of: bush, dye, dyestuff, reddish blue, shrub, violet

Part of: genus Indigofera, Indigofera

Encyclopedia: Indigo