Ancient Cerulean color palette — #ECF4EE · #C6E0F8 · #688FC8 · #00697F · #212C42

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

The five colors

• Cream (#ECF4EE): a clean, paper-quiet neutral.
• Powder Blue (#C6E0F8): A whisper-light, dusty blue — the color of deep harbor water.
• Slate Blue (#688FC8): A luminous, balanced blue — the color of a favorite pair of jeans.
• Peacock (#00697F): A full-bodied, balanced blue — the color of open sky before noon.
• Midnight (#212C42): A deep, shadowed, dusty violet — the color of a velvet chair.

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

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

• Worn Cerulean color palette (#EDF4EE, #B9E5F1, #009FB3, #256C57, #162F3D)
• Timeworn Veranda color palette (#EBF5EC, #A8D6F6, #0382EE, #00606F, #152249)
• Aged Denim Ridge color palette (#E1EBE3, #5FA9B7, #00617D, #003A35, #000C18)
• Patina Cerulean Summit color palette (#FAF4EE, #BCE2FF, #7788BB, #1A706F, #5C3D4B)
• Navy Workshop color palette (#E4EEE6, #4B8097, #003F63, #001F21, #000106)
• Dusty Petrol color palette (#E8F6EB, #74CBD5, #007E9A, #005348, #001D2C)
• Emerald Balcony color palette (#FEEAFF, #CB6C77, #58912A, #426DA1, #29162A)
• Muted Quarry color palette (#F9F4ED, #BEF2E1, #7DA6E3, #3A869A, #593D52)

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