Crucible
Registry ID
GCR-2025-555B59
Issued December 7, 2025
Color data
HEX #555B59
RGB 85 / 91 / 89
HSL 160° / 3% / 35%
CMYK 7 / 0 / 2 / 64
opencolors.org/certificate/555B59
The registry ID is GCR, the year the color was named, and its hex.
Registry ID
GCR-2025-555B59
Issued December 7, 2025
Color data
HEX #555B59
RGB 85 / 91 / 89
HSL 160° / 3% / 35%
CMYK 7 / 0 / 2 / 64
opencolors.org/certificate/555B59
White text
6.94:1 · AA
Black text
3.03:1 · Fail
CSS
--crucible: #555B59;
Tailwind
bg-[#555B59]
Token
{
"crucible": {
"value": "#555B59"
}
}