Ultramarine Basin color palette — #EAF8FF · #00A2C4 · #4655C1 · #59135E · #00100D

Built around Cobalt, softened by Royal Purple — the whole palette hums with trust and stability.

The five colors

• Ivory (#EAF8FF): a clean, paper-quiet neutral.
• Cerulean (#00A2C4): A luminous, balanced blue — the color of a favorite pair of jeans.
• Cobalt (#4655C1): A full-bodied, vivid violet — the color of a velvet chair.
• Royal Purple (#59135E): A deep, shadowed, balanced pink — the color of neon signs at night.
• Ink (#00100D): A deep, shadowed, dusty teal — the color of sea glass.

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

Use it as a design system

One click turns Ultramarine Basin 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

• Sunlit Aubergine color palette (#E5F9FF, #00A7A7, #0069A2, #3C2378, #011100)
• Softworn Sky Villa color palette (#ECF7FF, #06B5F0, #696CBE, #6B2E67, #00211C)
• Soft Cornflower Parlor color palette (#EEF6FF, #2393FC, #7646AE, #68053F, #001012)
• Washed Delta color palette (#E9F4FF, #007DD5, #6116AC, #47002E, #000202)
• Airy Aubergine color palette (#D8E5DB, #007986, #551E99, #510104, #0A0C00)
• Pale Garnet Meadow color palette (#CFE5F5, #007299, #84003E, #590028, #261F00)
• Muted Powder Harbor color palette (#E9F8FF, #84C9FF, #738AAB, #704A6F, #2D1D3A)
• Antique Villa color palette (#CFEDFF, #56BAFF, #0080D7, #0E4D9B, #071A44)

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