Cerulean Boulevard color palette — #D2E5EA · #3490BB · #4B659F · #003C36 · #000203

Cerulean and Slate set the tone — five colors that lean into trust and stability.

The five colors

• Frost (#D2E5EA): A whisper-light, dusty blue — the color of open sky before noon.
• Cerulean (#3490BB): A luminous, balanced blue — the color of a favorite pair of jeans.
• Slate (#4B659F): A full-bodied, balanced violet — the color of a velvet chair.
• Deep Forest (#003C36): A deep, shadowed, dusty teal — the color of glacier melt.
• Black (#000203): quiet, heavy and certain.

Feels like: Trust, Stability, Creativity, Calm, Sophistication. Tagged pastel, light, muted, cool.

Use it as a design system

One click turns Cerulean Boulevard 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

• Weathered Petrol color palette (#DAEED1, #529C9E, #006E92, #00351A, #000303)
• Iris Garden color palette (#DAE3EF, #7C7AC9, #7C4D8B, #003B51, #01001A)
• Antique Pewter Pier color palette (#E0F3F9, #6395CC, #805197, #00431D, #001319)
• Forest Basin color palette (#DCF3DF, #89C5EE, #9378C0, #005E2A, #000203)
• Denim Summit color palette (#EADDEA, #1B54AA, #4B0040, #001B49, #040003)
• Antique Garden color palette (#CBEEDF, #B0D2FC, #9493D8, #006D76, #001933)
• Mulberry Harbor color palette (#E4E0CD, #A3007F, #005881, #07090F, #000201)
• Lilac Chapel color palette (#F6DDF9, #A7B3F0, #A972C6, #00506F, #020B31)

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