Siyâh Black
Registry ID
GCR-2025-1C1B1A
Issued December 7, 2025
Color data
HEX #1C1B1A
RGB 28 / 27 / 26
HSL 30° / 4% / 11%
CMYK 0 / 4 / 7 / 89
opencolors.org/certificate/1C1B1A
The registry ID is GCR, the year the color was named, and its hex.
Registry ID
GCR-2025-1C1B1A
Issued December 7, 2025
Color data
HEX #1C1B1A
RGB 28 / 27 / 26
HSL 30° / 4% / 11%
CMYK 0 / 4 / 7 / 89
opencolors.org/certificate/1C1B1A
White text
17.20:1 · AAA
Black text
1.22:1 · Fail
CSS
--siy-h-black: #1C1B1A;
Tailwind
bg-[#1C1B1A]
Token
{
"siy-h-black": {
"value": "#1C1B1A"
}
}