Thalassa
Registry ID
GCR-2025-53B1BA
Issued December 7, 2025
Color data
HEX #53B1BA
RGB 83 / 177 / 186
HSL 185° / 43% / 53%
CMYK 55 / 5 / 0 / 27
opencolors.org/certificate/53B1BA
The registry ID is GCR, the year the color was named, and its hex.
Registry ID
GCR-2025-53B1BA
Issued December 7, 2025
Color data
HEX #53B1BA
RGB 83 / 177 / 186
HSL 185° / 43% / 53%
CMYK 55 / 5 / 0 / 27
opencolors.org/certificate/53B1BA
White text
2.51:1 · Fail
Black text
8.37:1 · AAA
CSS
--thalassa: #53B1BA;
Tailwind
bg-[#53B1BA]
Token
{
"thalassa": {
"value": "#53B1BA"
}
}