Ultramarine Harbor color palette — #D9E5EF · #004BB4 · #2B007D · #1D0038 · #110009

Built around Cobalt, softened by Royal Purple — the whole palette hums with trust and stability.

The five colors

• Frost (#D9E5EF): a clean, paper-quiet neutral.
• Cobalt (#004BB4): A full-bodied, vivid blue — the color of deep harbor water.
• Royal Purple (#2B007D): A deep, shadowed, vivid violet — the color of a velvet chair.
• Deep Indigo (#1D0038): A deep, shadowed, balanced violet — the color of a velvet chair.
• Ink (#110009): A deep, shadowed, dusty rose — the color of pressed rose petals.

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

Use it as a design system

One click turns Ultramarine Harbor 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

• Twilit Lapis color palette (#E1ECFF, #4720E2, #3C0078, #240031, #180012)
• Airy Nightshade Lantern color palette (#D1E8F2, #0069C0, #4123B1, #30005A, #170017)
• Deep Navy color palette (#D6F1FC, #005B8D, #00238F, #11004C, #0C001A)
• Smoked Grape color palette (#DEDBFE, #5800CC, #483F00, #24005C, #080600)
• Twilit Grape Grove color palette (#E4DAF0, #762AD1, #35006B, #100027, #03000B)
• Plum Courtyard color palette (#DAE0F1, #B982C0, #B44865, #003364, #170623)
• Lowlit Loft color palette (#DFDCF8, #4800A0, #393500, #05260E, #02000C)
• Onyx Grove color palette (#DCF6F4, #005E6D, #003347, #001731, #01002D)

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