Cerulean Basin color palette — #E3F5FF · #5ACAE3 · #0090B1 · #00576A · #002830

A conversation between Cerulean and Sky, giving this palette its sense of trust and stability.

The five colors

• Frost (#E3F5FF): A whisper-light, dusty blue — the color of open sky before noon.
• Sky (#5ACAE3): A luminous, balanced blue — the color of a favorite pair of jeans.
• Cerulean (#0090B1): A luminous, balanced blue — the color of a favorite pair of jeans.
• Peacock (#00576A): A full-bodied, dusty blue — the color of deep harbor water.
• Midnight (#002830): A deep, shadowed, dusty blue — the color of a favorite pair of jeans.

Feels like: Trust, Stability, Calm, Balance. Tagged monochrome, 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

• Hushed Villa color palette (#E5F9FF, #8AE4FF, #0099BB, #004E60, #00171D)
• Aged Cobalt Market color palette (#E6F3FF, #8BC1FA, #4786CD, #0C5392, #00213F)
• Turquoise Drift color palette (#E9F8FF, #58B0C2, #006B7D, #003D4A, #002835)
• Gentle Quarry color palette (#CDFFEA, #66D1AD, #00987D, #005B49, #00271D)
• Azure Garden color palette (#DDF4FF, #00A4DC, #006E90, #003D4F, #000C13)
• Gentle Hollow color palette (#EEEED1, #FF91C9, #41B9FF, #1C374C, #111B24)
• Hushed Petrol color palette (#F0F5FF, #CED8FF, #8F9FD1, #5C6998, #273552)
• Cobalt Canyon color palette (#EFF6FF, #88B5FF, #A761AE, #3D6FC2, #191428)

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