Blue Hour
Registry ID
GCR-2025-0034AB
Issued December 7, 2025
Color data
HEX #0034AB
RGB 0 / 52 / 171
HSL 222° / 100% / 34%
CMYK 100 / 70 / 0 / 33
opencolors.org/certificate/0034AB
The registry ID is GCR, the year the color was named, and its hex.
Registry ID
GCR-2025-0034AB
Issued December 7, 2025
Color data
HEX #0034AB
RGB 0 / 52 / 171
HSL 222° / 100% / 34%
CMYK 100 / 70 / 0 / 33
opencolors.org/certificate/0034AB
White text
10.10:1 · AAA
Black text
2.08:1 · Fail
CSS
--blue-hour: #0034AB;
Tailwind
bg-[#0034AB]
Token
{
"blue-hour": {
"value": "#0034AB"
}
}