Happy Hippo
Registry ID
GCR-2025-818581
Issued December 7, 2025
Color data
HEX #818581
RGB 129 / 133 / 129
HSL 120° / 2% / 51%
CMYK 3 / 0 / 3 / 48
opencolors.org/certificate/818581
The registry ID is GCR, the year the color was named, and its hex.
Registry ID
GCR-2025-818581
Issued December 7, 2025
Color data
HEX #818581
RGB 129 / 133 / 129
HSL 120° / 2% / 51%
CMYK 3 / 0 / 3 / 48
opencolors.org/certificate/818581
White text
3.75:1 · Fail
Black text
5.61:1 · AA
CSS
--happy-hippo: #818581;
Tailwind
bg-[#818581]
Token
{
"happy-hippo": {
"value": "#818581"
}
}