Ultramarine Basin color palette — #CEE5F8 · #0053B9 · #350076 · #23002F · #16000F

A conversation between Cobalt and Royal Purple, giving this palette its sense of trust and stability.

The five colors

• Frost (#CEE5F8): A whisper-light, dusty blue — the color of open sky before noon.
• Cobalt (#0053B9): A full-bodied, vivid blue — the color of open sky before noon.
• Royal Purple (#350076): A deep, shadowed, vivid violet — the color of a velvet chair.
• Deep Indigo (#23002F): A deep, shadowed, balanced pink — the color of a candy shop window.
• Ink (#16000F): A deep, shadowed, dusty pink — the color of a candy shop window.

Feels like: Trust, Stability, Creativity, Depth, Luxury. Tagged dark.

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

• Timeworn Workshop color palette (#DEE2F0, #5953C9, #4710A7, #320069, #110023)
• Soft Nightshade color palette (#D5F1FA, #0061A2, #190095, #200049, #190021)
• Charred Meadow color palette (#E1E8FA, #700AD1, #580060, #33001F, #160003)
• Lowlit Workshop color palette (#CBE8E5, #00647B, #00344E, #03004B, #090021)
• Charred Grape Hollow color palette (#EEE2FF, #6E00B2, #463F00, #2F0050, #070600)
• Nightshade Bloom color palette (#DBDDFA, #3B00AC, #083F04, #00261D, #01000E)
• Soft Market color palette (#E3EBFF, #847500, #3237FF, #1D051B, #050004)
• Muted Fuchsia color palette (#EBECFF, #D574C2, #AF514B, #003651, #130322)

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