Cobalt Basin color palette — #ECF8F8 · #9CCAF7 · #4579BE · #005A7E · #273B59

Cerulean takes the lead with Peacock close behind in a set that reads as trust and stability at first glance.

The five colors

• Ivory (#ECF8F8): a clean, paper-quiet neutral.
• Sky (#9CCAF7): A whisper-light, balanced blue — the color of deep harbor water.
• Cerulean (#4579BE): A full-bodied, balanced blue — the color of open sky before noon.
• Peacock (#005A7E): A full-bodied, balanced blue — the color of a favorite pair of jeans.
• Navy (#273B59): A deep, shadowed, dusty blue — the color of deep harbor water.

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

Use it as a design system

One click turns Cobalt 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

• Wandering Cerulean color palette (#E8FAF6, #8AD3DB, #00879C, #00605D, #1B3F51)
• Aged Periwinkle Corridor color palette (#F9F4ED, #ABE2D3, #6F95D9, #007894, #32375D)
• Aged Cerulean Veranda color palette (#D9EAE7, #389DBA, #00516C, #002F34, #001624)
• Weathered Rose Canyon color palette (#F9E8FC, #DA5E7B, #5B71CA, #8E3048, #293358)
• Timeworn Lagoon Lantern color palette (#FCF2F5, #C9E3FE, #A2ACEF, #009FA7, #443058)
• Ancient Scarlet Corridor color palette (#F8D9F5, #D03C47, #876700, #754289, #382337)
• Apricot Delta color palette (#FFF0FC, #FFC9B9, #D99A67, #9A5B63, #493443)
• Chestnut Archive color palette (#D5F0D8, #AA945B, #815C03, #314C2F, #1B3728)

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