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In the registryIssued December 7, 2025GCR-2025-8F9CAC

The registry ID is GCR, the year the color was named, and its hex.

Atom Blue certificate

Atom Blue

Registry ID

GCR-2025-8F9CAC

Issued December 7, 2025

Color data

HEX #8F9CAC

RGB 143 / 156 / 172

HSL 213° / 15% / 62%

CMYK 17 / 9 / 0 / 33

opencolors.org/certificate/8F9CAC

Using this color

Aa

White text

2.79:1 · Fail

Aa

Black text

7.52:1 · AAA

Suggested pairings

ComplementTaupe Tone#ADA090
Analogous +30°#9190AD
Analogous −30°#90ABAD

Copy for a project

CSS

--atom-blue: #8F9CAC;

Tailwind

bg-[#8F9CAC]

Token

{
  "atom-blue": {
    "value": "#8F9CAC"
  }
}