Red
Registry ID
GCR-2025-FF0000
Issued December 7, 2025
Color data
HEX #FF0000
RGB 255 / 0 / 0
HSL 0° / 100% / 50%
CMYK 0 / 100 / 100 / 0
opencolors.org/certificate/FF0000
The registry ID is GCR, the year the color was named, and its hex.
Registry ID
GCR-2025-FF0000
Issued December 7, 2025
Color data
HEX #FF0000
RGB 255 / 0 / 0
HSL 0° / 100% / 50%
CMYK 0 / 100 / 100 / 0
opencolors.org/certificate/FF0000
White text
4.00:1 · Fail
Black text
5.25:1 · AA
CSS
--red: #FF0000;
Tailwind
bg-[#FF0000]
Token
{
"red": {
"value": "#FF0000"
}
}