Ancient Cerulean color palette — #D7EFFF · #90C4EA · #5E90BB · #365A83 · #22334B

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

The five colors

• Frost (#D7EFFF): A whisper-light, dusty blue — the color of open sky before noon.
• Sky (#90C4EA): A luminous, dusty blue — the color of a favorite pair of jeans.
• Slate Blue (#5E90BB): A luminous, balanced blue — the color of open sky before noon.
• Peacock (#365A83): A full-bodied, dusty blue — the color of open sky before noon.
• Deep Teal (#22334B): A deep, shadowed, dusty blue — the color of deep harbor water.

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

Use it as a design system

One click turns Ancient Cerulean 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

• Weathered Lagoon Grove color palette (#CEF7FF, #7DCCC7, #289598, #1A6871, #163846)
• Patina Cobalt Boulevard color palette (#EBF1FF, #B4B4E8, #8175B1, #5D4B78, #31304C)
• Cobalt Studio color palette (#EBF3FD, #93B5E8, #C5879F, #4A72AE, #3B2845)
• Cobalt Corridor color palette (#D2FAE9, #98CBEF, #66A1D5, #4C77AF, #60455F)
• Ancient Periwinkle color palette (#EAF3FF, #7C9DD1, #A67DA7, #348785, #1B2839)
• Hushed Sapphire color palette (#DDEDFF, #6099FF, #4566E0, #3438A8, #221B59)
• Worn Indigo Ridge color palette (#DEE4FF, #8E8DDF, #7159BB, #492A78, #2B1240)
• Moonless Denim color palette (#DAECFB, #005693, #00255A, #000437, #010011)

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