Indigo Blue
Registry ID
GCR-2025-3A18B1
Issued December 7, 2025
Color data
HEX #3A18B1
RGB 58 / 24 / 177
HSL 253° / 76% / 39%
CMYK 67 / 86 / 0 / 31
opencolors.org/certificate/3A18B1
The registry ID is GCR, the year the color was named, and its hex.
Registry ID
GCR-2025-3A18B1
Issued December 7, 2025
Color data
HEX #3A18B1
RGB 58 / 24 / 177
HSL 253° / 76% / 39%
CMYK 67 / 86 / 0 / 31
opencolors.org/certificate/3A18B1
White text
10.79:1 · AAA
Black text
1.95:1 · Fail
CSS
--indigo-blue: #3A18B1;
Tailwind
bg-[#3A18B1]
Token
{
"indigo-blue": {
"value": "#3A18B1"
}
}