Color Saturation Adjuster

Color Saturation Adjuster

RGB is converted to integer-rounded HSL. The adjustment is added to saturation in percentage points, limited to 0–100, and converted back to RGB; it is not a percentage multiplier or HSV saturation. Rounding can alter RGB even at adjustment 0: #123456 becomes #123354. #C07070 with +25 becomes #DA5858. #FF0000 with -100 becomes #808080; #808080 with +100 becomes #FF0000 because gray is assigned hue 0. This cannot recover an original hue lost through desaturation. Black and white stay unchanged. The tool processes one opaque output color in the browser. Accepted rgba()/hsla() input loses alpha; 8-digit HEX and CSS color names are not supported by this panel and invalid HEX-field text reverts to the previous color.