Cerulean Basin color palette — #CFF9FB · #0099AB · #005E75 · #002332 · #000103

Cerulean and Peacock set the tone — five colors that lean into trust and stability.

The five colors

• Honeydew (#CFF9FB): A whisper-light, dusty blue — the color of open sky before noon.
• Cerulean (#0099AB): A luminous, balanced blue — the color of open sky before noon.
• Peacock (#005E75): A full-bodied, balanced blue — the color of deep harbor water.
• Midnight (#002332): A deep, shadowed, dusty blue — the color of a favorite pair of jeans.
• Black (#000103): a grounded near-black with real depth.

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

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 Corridor color palette (#DFEDE2, #00A170, #00624D, #00221E, #000201)
• Wandering Workshop color palette (#C6F1ED, #008595, #004964, #270046, #000102)
• Twilit Cypress color palette (#D8EAE6, #007278, #003C49, #001927, #00010A)
• Pale Aqua color palette (#E2FAFF, #39D5FE, #008CBE, #004E7B, #001530)
• Cobalt Alley color palette (#DDECF5, #0082C9, #004383, #000646, #01000B)
• Velvet Harbor color palette (#D9E9F5, #007198, #3600A5, #290027, #000201)
• Denim Harbor color palette (#DDF3FF, #67625A, #005768, #181920, #00060C)
• Powdered Teal Hollow color palette (#DAF4FF, #00CAC5, #00A3BA, #0071A0, #000102)

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