Indigo – Meaning, Definition, Synonyms and Antonyms
Indigo is a noun in English. It usually names a deep blue color (sometimes with a hint of violet), and it can also refer to the blue dye or pigment traditionally made from the indigo plant.
Meaning:
Indigo refers to a rich, dark blue shade often connected with natural dyeing and traditional textiles. You may see it described as between blue and violet, and it’s also a color name commonly used in art and design to describe cool, dramatic tones.
Definition:
In practical terms, indigo is a deep blue color. Historically, indigo was also the name for the dye/pigment produced from plants used to color fabrics such as denim. The term is still used the same way today: you can talk about the color itself (“an indigo shirt”) or about the dye (“indigo was used to stain the cloth”).
Example Sentences:
- The artist used indigo as the dominant color to create a sense of calm in the foreground.
- For the project, the fabric was dyed with indigo, producing a deep blue shade that looked richer after washing.
- In the presentation, she described the new uniform color as “a modern indigo,” designed to stand out under office lighting.
- The sky shifted to a darker indigo just before the storm.
Indigo Synonyms:
- Blue
- Navy
- Cobalt
- Azure
- Midnight blue
- Royal blue
- Deep blue
- Violet-blue
- Denim blue
Indigo Antonyms:
Explore more indolent meaning definition synonyms and antonyms for helpful word patterns, or check indifferent to compare how closely related adjectives express different shades of attitude.






