Aged Cerulean Harbor color palette — #E9F3FF · #AAD4FF · #5E8BB6 · #314E6E · #0C2138

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

The five colors

• Ivory (#E9F3FF): bright and airy, almost weightless.
• Powder Blue (#AAD4FF): A whisper-light, dusty blue — the color of open sky before noon.
• Slate Blue (#5E8BB6): A luminous, balanced blue — the color of open sky before noon.
• Peacock (#314E6E): A full-bodied, dusty blue — the color of deep harbor water.
• Midnight (#0C2138): A deep, shadowed, dusty blue — the color of open sky before noon.

Feels like: Trust, Stability, Calm, Sophistication. Tagged monochrome, muted, cool.

Use it as a design system

One click turns Aged Cerulean 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

• Mallow Courtyard color palette (#EEF1FF, #D6BDFF, #8F79AE, #524369, #171734)
• Cerulean Delta color palette (#FEF0FF, #A0C7F0, #6086B2, #2D5379, #492E4B)
• Cerulean Meadow color palette (#E6F4FF, #DAD6E4, #B0ACA2, #638E9D, #36404B)
• Stone Coast color palette (#E5F7EB, #B8C193, #658E75, #695058, #1F302D)
• Iris Chapel color palette (#EDF1FF, #8E87E1, #828855, #5E6237, #1F222E)
• Stone Study color palette (#EDF2FB, #BDCB92, #555F87, #263147, #10141B)
• Weathered Parlor color palette (#D4E5DF, #FFB997, #6BC6FF, #2A3843, #13171A)
• Airy Lantern color palette (#EEF1FF, #97A9FF, #4D5FDC, #28267D, #050241)

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