Shutter Blue
Registry ID
GCR-2025-666E7F
Issued December 7, 2025
Color data
HEX #666E7F
RGB 102 / 110 / 127
HSL 221° / 11% / 45%
CMYK 20 / 13 / 0 / 50
opencolors.org/certificate/666E7F
The registry ID is GCR, the year the color was named, and its hex.
Registry ID
GCR-2025-666E7F
Issued December 7, 2025
Color data
HEX #666E7F
RGB 102 / 110 / 127
HSL 221° / 11% / 45%
CMYK 20 / 13 / 0 / 50
opencolors.org/certificate/666E7F
White text
5.12:1 · AA
Black text
4.10:1 · Fail
CSS
--shutter-blue: #666E7F;
Tailwind
bg-[#666E7F]
Token
{
"shutter-blue": {
"value": "#666E7F"
}
}