Home › Forums › Front-end Issues › Convert hexadecimal value to HSL › Reply To: Convert hexadecimal value to HSL
@hube2 I am back after a while.
I believed that code worked, but it’s something missing right here..
function hexToHsl($hex){
$red = hexdec(substr($hex, 0, 2)) / 255;
$green = hexdec(substr($hex, 2, 2)) / 255;
$blue = hexdec(substr($hex, 4, 2)) / 255;
$cmin = min($red, $green, $blue);
$cmax = max($red, $green, $blue);
$delta = $cmax - $cmin;
if ($delta === 0) {
$hue = 0;
} elseif ($cmax === $red) {
$hue = (($green - $blue) / $delta) % 6;
} elseif ($cmax === $green) {
$hue = ($blue - $red) / $delta + 2;
} else {
$hue = ($red - $green) / $delta + 4;
}
$hue = round($hue * 60);
if ($hue < 0) {
$hue += 360;
}
$lightness = (($cmax + $cmin) / 2) * 100;
$saturation = $delta === 0 ? 0 : ($delta / (1 - abs(2 * $lightness - 1))) * 100;
if ($saturation < 0) {
$saturation += 100;
}
$lightness = round($lightness);
$saturation = round($saturation);
return "hsl(${hue}, ${saturation}%, ${lightness}%)";
}
usage
<?php echo '',print_r(hexToHsl($hex_color)).'';?>
Returns : hsl(137, 99%, 42%)1
but the correct is hsl(258, 83%, 45%)
. What exactly I’m doing wrong? Any kind of help is much appreciated.
Sincerely,
Mike
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