6 entries under cobalt topic. ×
| beryl(sky, royal, blue-green, teal) | |
| blue-gray(sky, royal, blue-green, teal) | |
| blue-green(sky, royal, teal) | |
| empyrean | |
| ether | |
| sky(royal, blue-green, teal) |
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| APA | Smart Define. (2015). ultramarine thesaurus. Retrieved October 1, 2026, from https://smartdefine.org/ultramarine/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "ultramarine thesaurus" https://smartdefine.org/ultramarine/thesaurus/synonyms (accessed October 1, 2026). |
| Harvard | Smart Define 2015, ultramarine thesaurus, Smart Define, viewed 1 October, 2026, <https://smartdefine.org/ultramarine/thesaurus/synonyms>. |
| MLA | Smart Define. "ultramarine thesaurus" 13 April 2015. Web. 1 October 2026. <https://smartdefine.org/ultramarine/thesaurus/synonyms> |