Cerulean Harbor color palette — #D9ECF7 · #0099C5 · #375677 · #1B3341 · #000509

Built around Cerulean, softened by Peacock — the whole palette hums with trust and stability.

The five colors

• Frost (#D9ECF7): A whisper-light, dusty blue — the color of open sky before noon.
• Cerulean (#0099C5): A luminous, balanced blue — the color of deep harbor water.
• Peacock (#375677): A full-bodied, dusty blue — the color of open sky before noon.
• Deep Teal (#1B3341): A deep, shadowed, dusty blue — the color of deep harbor water.
• Ink (#000509): A deep, shadowed, dusty blue — the color of deep harbor water.

Feels like: Trust, Stability, Sophistication. Tagged noir, dark, luxury, muted.

Use it as a design system

One click turns Cerulean 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.

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