Antique Cobalt color palette — #E9F9F8 · #A0CAF0 · #477AB9 · #005A7D · #273B58

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

The five colors

• Ivory (#E9F9F8): bright and airy, almost weightless.
• Sky (#A0CAF0): A whisper-light, dusty blue — the color of open sky before noon.
• Cerulean (#477AB9): A full-bodied, balanced blue — the color of a favorite pair of jeans.
• Peacock (#005A7D): A full-bodied, balanced blue — the color of deep harbor water.
• Navy (#273B58): A deep, shadowed, dusty blue — the color of open sky before noon.

Feels like: Trust, Stability, Calm, Sophistication. Tagged coastal, cool, light, muted.

Use it as a design system

One click turns Antique Cobalt 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

• Patina Sky color palette (#E6FAF8, #45C6FC, #0076AB, #005363, #00355B)
• Aged Garden color palette (#E4FBF6, #89DFE6, #008FA2, #006762, #004858)
• Ash Summit color palette (#EFF6FF, #E1D5F0, #AEA4DC, #4E7397, #3A4459)
• Petrol Ridge color palette (#FBF4E9, #B9DED3, #7896CA, #007893, #4E2E45)
• Patina Cerulean Veranda color palette (#D4E9E6, #469CB4, #00516A, #002F34, #001623)
• Sapphire Corridor color palette (#D5E6FF, #2C6DF7, #9D429A, #00686A, #1B2C44)
• Wandering Periwinkle Delta color palette (#E9F0FF, #709DF9, #4063B2, #1E3474, #0F204C)
• Hazy Cornflower Station color palette (#E3F0FF, #4A8FE3, #AD5783, #0955A3, #52223B)

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