Definition

1. Noun:

   • A blue-violet color: A deep, rich color that lies between blue and violet on the visible spectrum.
   • A blue dye: A natural dye obtained from certain plants, historically very valuable, or a synthetic version of this dye.
   • A plant source: Any of various plants, especially of the genus Indigofera, from which the indigo dye is extracted.

2. Adjective:

   • Having the color indigo: Of a deep purplish-blue color.

Examples of Usage

• Noun (Color):
  • The evening sky turned a deep indigo.
  • She painted her room in shades of indigo and white.
• Noun (Dye/Plant):
  • Indigo was once a major trade commodity.
  • The field was full of indigo plants ready for harvest.
• Adjective:
  • She wore an indigo dress to the party.
  • The artist mixed blue and violet to get the perfect indigo hue.

Advanced Usage

• "Indigo child": A concept in New Age belief describing children who are believed to possess special, unusual, or supernatural traits or abilities.
  • Some parents believe their child is an indigo child because of her high empathy.

Variants and Related Words

• Indigotin (n): The organic compound that is the primary component of natural indigo dye.
• Indigofera (n): The botanical genus comprising many of the plants used to produce indigo dye.

Synonyms

• Adjective (Color): Blue-violet, deep blue, navy (in some contexts).
• Noun (Dye): Wood (archaic term for the dye).

Related Phrases

• Indigo blue: Another term for the color indigo, often used for emphasis or clarity.
  • The flag featured stripes of indigo blue and white.

Related Idioms

(No common idioms are centrally built around the word "indigo" itself.)

Adjective

1. having a color between blue and violet
   • indigo flowers

Noun

1. a blue-violet color
2. deciduous subshrub of southeastern Asia having pinnate leaves and clusters of red or purple flowers; a source of indigo dye
3. a blue dye obtained from plants or made synthetically