One colour, every format
HEX is the compact way to write a colour in CSS, but you often need it as rgb() — for an alpha value, say — or as hsl() to tweak it. Paste a HEX code or pick from the swatch and this tool shows all three, each ready to copy.
Accurate and local
The conversion uses the standard colour maths and runs entirely on your device, so it is instant and nothing you enter is uploaded.