Mineral Umber
Registry ID
GCR-2025-B18B32
Issued December 7, 2025
Color data
HEX #B18B32
RGB 177 / 139 / 50
HSL 42° / 56% / 45%
CMYK 0 / 21 / 72 / 31
opencolors.org/certificate/B18B32
The registry ID is GCR, the year the color was named, and its hex.
Registry ID
GCR-2025-B18B32
Issued December 7, 2025
Color data
HEX #B18B32
RGB 177 / 139 / 50
HSL 42° / 56% / 45%
CMYK 0 / 21 / 72 / 31
opencolors.org/certificate/B18B32
White text
3.18:1 · Fail
Black text
6.61:1 · AA
CSS
--mineral-umber: #B18B32;
Tailwind
bg-[#B18B32]
Token
{
"mineral-umber": {
"value": "#B18B32"
}
}