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In the registryIssued December 7, 2025GCR-2025-66FF11

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

Poisoning Green certificate

Poisoning Green

Registry ID

GCR-2025-66FF11

Issued December 7, 2025

Color data

HEX #66FF11

RGB 102 / 255 / 17

HSL 99° / 100% / 53%

CMYK 60 / 0 / 93 / 0

opencolors.org/certificate/66FF11

Using this color

Aa

White text

1.32:1 · Fail

Aa

Black text

15.88:1 · AAA

Suggested pairings

Complement#AB0FFF
Analogous +30°#0FFF33
Analogous −30°#DBFF0F

Copy for a project

CSS

--poisoning-green: #66FF11;

Tailwind

bg-[#66FF11]

Token

{
  "poisoning-green": {
    "value": "#66FF11"
  }
}