Ultramarine Basin color palette — #C9EAF9 · #0084D0 · #0048BD · #1D0061 · #040010

Cobalt and Azure set the tone — five colors that lean into trust and stability.

The five colors

• Frost (#C9EAF9): A whisper-light, dusty blue — the color of open sky before noon.
• Azure (#0084D0): A full-bodied, balanced blue — the color of open sky before noon.
• Cobalt (#0048BD): A full-bodied, vivid violet — the color of wild irises.
• Deep Indigo (#1D0061): A deep, shadowed, balanced violet — the color of a velvet chair.
• Ink (#040010): A deep, shadowed, dusty violet — the color of twilight just after sunset.

Feels like: Trust, Stability, Creativity, Calm, Energy, Balance. Tagged cool.

Use it as a design system

One click turns Ultramarine 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

• Nightshade Parlor color palette (#CEE3F5, #467BFF, #3D00D0, #31005C, #030005)
• Pale Navy color palette (#CDEFF3, #0091BC, #00507C, #002465, #020015)
• Airy Nightshade color palette (#C5E6FD, #006CBF, #001DC1, #1C006F, #110039)
• Patina Sapphire color palette (#D7E7F6, #1983F8, #005EE1, #2338A8, #0A023C)
• Twilit Cabin color palette (#D8E4F1, #535ADA, #490088, #2A0038, #030003)
• Nightshade Station color palette (#FCE4F6, #526FF2, #816200, #1E00B2, #020100)
• Chalky Peony Lagoon color palette (#FFE7F8, #D9B6FF, #E670AE, #00688C, #050019)
• Chalky Ultramarine color palette (#F1DCED, #294FED, #735100, #404800, #00000C)

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