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In the registryIssued December 7, 2025GCR-2025-439E8D

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

Dioptase Green certificate

Dioptase Green

Registry ID

GCR-2025-439E8D

Issued December 7, 2025

Color data

HEX #439E8D

RGB 67 / 158 / 141

HSL 169° / 40% / 44%

CMYK 58 / 0 / 11 / 38

opencolors.org/certificate/439E8D

Using this color

Aa

White text

3.22:1 · Fail

Aa

Black text

6.51:1 · AA

Suggested pairings

Complement#9D4354
Analogous +30°#43819D
Analogous −30°#439D60

Copy for a project

CSS

--dioptase-green: #439E8D;

Tailwind

bg-[#439E8D]

Token

{
  "dioptase-green": {
    "value": "#439E8D"
  }
}