Nightshadow Blue
Registry ID
GCR-2025-555971
Issued December 7, 2025
Color data
HEX #555971
RGB 85 / 89 / 113
HSL 231° / 14% / 39%
CMYK 25 / 21 / 0 / 56
opencolors.org/certificate/555971
The registry ID is GCR, the year the color was named, and its hex.
Registry ID
GCR-2025-555971
Issued December 7, 2025
Color data
HEX #555971
RGB 85 / 89 / 113
HSL 231° / 14% / 39%
CMYK 25 / 21 / 0 / 56
opencolors.org/certificate/555971
White text
6.88:1 · AA
Black text
3.05:1 · Fail
CSS
--nightshadow-blue: #555971;
Tailwind
bg-[#555971]
Token
{
"nightshadow-blue": {
"value": "#555971"
}
}