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In the registryIssued December 7, 2025GCR-2025-00315A

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

Effervescent Blue certificate

Effervescent Blue

Registry ID

GCR-2025-00315A

Issued December 7, 2025

Color data

HEX #00315A

RGB 0 / 49 / 90

HSL 207° / 100% / 18%

CMYK 100 / 46 / 0 / 65

opencolors.org/certificate/00315A

Using this color

Aa

White text

13.23:1 · AAA

Aa

Black text

1.59:1 · Fail

Suggested pairings

Complement#5C2900
Analogous +30°#00055C
Analogous −30°#005C57

Copy for a project

CSS

--effervescent-blue: #00315A;

Tailwind

bg-[#00315A]

Token

{
  "effervescent-blue": {
    "value": "#00315A"
  }
}