Cerulean Basin color palette — #F0F3EA · #B5E9DC · #718FBA · #37647D · #382535

A conversation between Slate Blue and Peacock, giving this palette its sense of trust and stability.

The five colors

• Cream (#F0F3EA): bright and airy, almost weightless.
• Mint (#B5E9DC): A whisper-light, dusty teal — the color of sea glass.
• Slate Blue (#718FBA): A luminous, dusty blue — the color of deep harbor water.
• Peacock (#37647D): A full-bodied, dusty blue — the color of open sky before noon.
• Onyx (#382535): A deep, shadowed, dusty pink — the color of peonies in June.

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

Use it as a design system

One click turns Cerulean Basin 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

• Cypress Field color palette (#F1F3E8, #ACE7F7, #5797AF, #116B71, #0E3427)
• Worn Turquoise color palette (#E7EAD8, #4FAAC0, #00627B, #00393C, #000D15)
• Patina Cornflower Basin color palette (#EFF5E3, #A5D6FF, #2884E1, #005D7D, #0B234C)
• Timeworn Powder Station color palette (#FCF4EB, #C5E4F9, #A4B9F1, #4C8D99, #543445)
• Patina Cerulean color palette (#DEE3D1, #2F82A8, #004061, #001E26, #000104)
• Aqua Field color palette (#F1F4E4, #62CDE0, #007F99, #005153, #001E29)
• Patina Alley color palette (#FFEDE9, #EB7C91, #7287DA, #914C59, #381C32)
• Aged Driftwood color palette (#FFEEE7, #E1D4C6, #E1B79B, #9B6C71, #3B271C)

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