Ultramarine Harbor color palette — #CFE0F6 · #0059CD · #863900 · #3E3900 · #091B32

Built around Cobalt, softened by Rust — the whole palette hums with nature and growth.

The five colors

• Powder Blue (#CFE0F6): A whisper-light, dusty blue — the color of a favorite pair of jeans.
• Cobalt (#0059CD): A full-bodied, vivid blue — the color of open sky before noon.
• Rust (#863900): A full-bodied, balanced orange — the color of autumn markets.
• Deep Olive (#3E3900): A deep, shadowed, dusty green — the color of fresh herbs.
• Midnight (#091B32): A deep, shadowed, dusty blue — the color of open sky before noon.

Feels like: Nature, Growth, Trust, Stability, Optimism, Energy. Tagged cool.

Use it as a design system

One click turns 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

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• Patina Grape color palette (#D5DDFA, #6C27E0, #6E4B00, #004513, #131736)
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Browse the whole catalog at Explore, or see today's palette.