Antique Ultramarine Harbor color palette — #CEEBFF · #5292EE · #4944BD · #3F2181 · #3D1C52

A conversation between Cobalt and Azure, giving this palette its sense of trust and stability.

The five colors

• Frost (#CEEBFF): A whisper-light, dusty blue — the color of open sky before noon.
• Azure (#5292EE): A luminous, balanced blue — the color of a favorite pair of jeans.
• Cobalt (#4944BD): A full-bodied, vivid violet — the color of a velvet chair.
• Royal Purple (#3F2181): A deep, shadowed, balanced violet — the color of a velvet chair.
• Royal Purple (#3D1C52): A deep, shadowed, balanced violet — the color of a velvet chair.

Feels like: Trust, Stability, Creativity, Calm, Balance. Tagged cool.

Use it as a design system

One click turns Antique Ultramarine Harbor into a complete token system: semantic roles from primary to success, an 11-stop OKLCH scale per role, a WCAG AA/AAA and APCA contrast matrix, an auto-derived dark mode and 11 export formats including CSS custom properties, Tailwind, Figma Variables and shadcn/ui.

Similar palettes

• Nightshade Pier color palette (#DDE4F1, #7092E8, #5865EC, #4518BE, #2D1F58)
• Washed Iris color palette (#D8EFFF, #6BB1FF, #777EFF, #6747BB, #402151)
• Nightshade Lagoon color palette (#DEE9FF, #6076CA, #3C3BBE, #34008D, #1E0348)
• Chalky Aubergine Coast color palette (#E5DBFF, #9E88DF, #5F3AA3, #310071, #1E003B)
• Navy Orchard color palette (#D2F8FB, #009DCA, #005F91, #07378D, #271F5B)
• Patina Nightshade color palette (#D5DEF5, #716DDE, #776C00, #4031A0, #2F2A00)
• Tempered Cabin color palette (#EBF0FF, #D6B8E2, #D47F9A, #2D659E, #3F2E53)
• Tempered Indigo Field color palette (#EAEBFF, #615AC2, #6F5D00, #425500, #1B193E)

Browse the whole catalog at Explore, or see today's palette.