Cerulean Basin color palette — #EFF7F6 · #D9DDE8 · #BDC4EC · #4D9EB8 · #3A4F67

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

The five colors

• Ivory (#EFF7F6): a clean, paper-quiet neutral.
• Silver (#D9DDE8): a clean, paper-quiet neutral.
• Lilac Frost (#BDC4EC): A whisper-light, dusty violet — the color of wild irises.
• Cerulean (#4D9EB8): A luminous, balanced blue — the color of deep harbor water.
• Peacock (#3A4F67): A full-bodied, dusty blue — the color of a favorite pair of jeans.

Feels like: Trust, Stability, Calm, Sophistication, Softness, Clarity. 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

• Worn Drift color palette (#EAF8FF, #C9DEFF, #6EC2EE, #3A82B2, #2F4964)
• Tempered Basin color palette (#EDF8F6, #CAE0FE, #00A2C1, #006A6A, #00222E)
• Timeworn Chapel color palette (#F4F6EE, #C0EAED, #729EC4, #527865, #5B4D5C)
• Hushed Cobalt Drift color palette (#EBF8F7, #A3D4ED, #0083BE, #004F5F, #000D1D)
• Timeworn Teal color palette (#EDF6FF, #9FD2FB, #C9ADE3, #5BB5A0, #263B4D)
• Turquoise Grove color palette (#EDF8F5, #D3DFEC, #00C5D6, #00897D, #003C47)
• Driftwood Studio color palette (#EBF9F1, #C3E2E1, #91B9A2, #8B7849, #2E453C)
• Denim Thicket color palette (#D7E5E5, #7DA7CD, #0052A5, #00283B, #00000A)

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