Red Sentinel
Registry ID
GCR-2025-B9090F
Issued December 7, 2025
Color data
HEX #B9090F
RGB 185 / 9 / 15
HSL 358° / 91% / 38%
CMYK 0 / 95 / 92 / 27
opencolors.org/certificate/B9090F
The registry ID is GCR, the year the color was named, and its hex.
Registry ID
GCR-2025-B9090F
Issued December 7, 2025
Color data
HEX #B9090F
RGB 185 / 9 / 15
HSL 358° / 91% / 38%
CMYK 0 / 95 / 92 / 27
opencolors.org/certificate/B9090F
White text
6.75:1 · AA
Black text
3.11:1 · Fail
CSS
--red-sentinel: #B9090F;
Tailwind
bg-[#B9090F]
Token
{
"red-sentinel": {
"value": "#B9090F"
}
}