9
azure(shade, colour, blue, noun, name)
8
cobalt(shade, colour, noun, blue, name)
7
sapphire(shade, colour, blue, noun, name)
7
cyan(shade, colour, blue, noun, name)
7
indigo(shade, colour, blue, noun, name)
7
navy(shade, colour, blue, noun, name)
7
turquoise(shade, colour, blue, noun, name)
6
cerulean(shade, colour, noun, name, blue)
6
teal(shade, colour, noun, name, blue)
5
cornflower(noun, adjective, name, shade, colour)
5
peacock(noun, adjective, name, shade, colour)
4
cobalt blue(shade, colour, noun, name, blue)
4
oxford blue(shade, colour, noun, name, blue)
4
vivid blue(noun, name, shade, colour, blue)
3
overseas
3
admiral(noun, name, shade, colour, blue)
3
adriatic sea(noun, name, shade, colour, blue)
3
aegean(noun, name, shade, colour, blue)
3
air superiority blue(noun, name, shade, colour, blue)
3
airforce blue(noun, name, shade, colour, blue)
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APASmart Define. (2015). ultramarine thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/ultramarine/thesaurus/synonyms
ChicagoSmart Define. 2015. "ultramarine thesaurus" https://smartdefine.org/ultramarine/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, ultramarine thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/ultramarine/thesaurus/synonyms>.
MLASmart Define. "ultramarine thesaurus" 13 April 2015. Web. 20 September 2026. <https://smartdefine.org/ultramarine/thesaurus/synonyms>