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

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

Medium Aquamarine certificate

Medium Aquamarine

Registry ID

GCR-2025-66DDAA

Issued December 7, 2025

Color data

HEX #66DDAA

RGB 102 / 221 / 170

HSL 154° / 64% / 63%

CMYK 54 / 0 / 23 / 13

opencolors.org/certificate/66DDAA

Using this color

Aa

White text

1.68:1 · Fail

Aa

Black text

12.49:1 · AAA

Suggested pairings

Complement#DD6499
Analogous +30°#64D5DD
Analogous −30°#64DD6C

Copy for a project

CSS

--medium-aquamarine: #66DDAA;

Tailwind

bg-[#66DDAA]

Token

{
  "medium-aquamarine": {
    "value": "#66DDAA"
  }
}