Shearwater Black
Registry ID
GCR-2025-5B5B6C
Issued December 7, 2025
Color data
HEX #5B5B6C
RGB 91 / 91 / 108
HSL 240° / 9% / 39%
CMYK 16 / 16 / 0 / 58
opencolors.org/certificate/5B5B6C
The registry ID is GCR, the year the color was named, and its hex.
Registry ID
GCR-2025-5B5B6C
Issued December 7, 2025
Color data
HEX #5B5B6C
RGB 91 / 91 / 108
HSL 240° / 9% / 39%
CMYK 16 / 16 / 0 / 58
opencolors.org/certificate/5B5B6C
White text
6.65:1 · AA
Black text
3.16:1 · Fail
CSS
--shearwater-black: #5B5B6C;
Tailwind
bg-[#5B5B6C]
Token
{
"shearwater-black": {
"value": "#5B5B6C"
}
}