Indigo
Indigo adjective - Having a color between blue and violet.
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Synonyms for Indigo
Ultramarine and indigo are semantically related in sky topic. In some cases you can use "Ultramarine" instead an adjective "Indigo".
Ultramarine
Ultramarine adjective - Of a brilliant pure blue to purplish blue color.
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Synonyms for Ultramarine
Indigo and ultramarine are semantically related in sky topic. You can use "Indigo" instead an adjective "Ultramarine".
Mutual synonyms
Related pairs
Both words in one sentence
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Rainbow Motif: The first seven worlds, with the sixth being based on "Ultramarine" rather than Indigo.
Source: Video Game / Kirby: Canvas Curse -
The first seven worlds of Kirby: Canvas Curse, with the sixth being called "Ultramarine" rather than Indigo.
Source: Rainbow Motif
Cite this Source
Ultramarine and Indigo. (2016). Retrieved 2026, July 28, from https://thesaurus.plus/related/indigo/ultramarine
Indigo & Ultramarine. N.p., 2016. Web. 28 Jul. 2026. <https://thesaurus.plus/related/indigo/ultramarine>.
Ultramarine or Indigo. 2016. Accessed July 28, 2026. https://thesaurus.plus/related/indigo/ultramarine.
Google Ngram Viewer shows how "indigo" and "ultramarine" have occurred on timeline