$colorString = 'rgb(90%, 10%, 10%)';
$output = "The result of getHSL for the color '$colorString' is:<br/>";
$color = new \ImagickPixel($colorString);
$colorInfo = $color->getHSL();
foreach ($colorInfo as $key => $value) {
$output .= "$key : $value <br/>";
}
return $output;