Php Codes

Php > Graphics sample source codes

Colors - Make a hex color lighter

Colors - Make a hex color lighter

Create a lighter shade of a hex color: 

<? 
function hexLighter($hex,$factor = 30) 
    { 
    $new_hex = ''; 
     
    $base['R'] = hexdec($hex{0}.$hex{1}); 
    $base['G'] = hexdec($hex{2}.$hex{3}); 
    $base['B'] = hexdec($hex{4}.$hex{5}); 
     
    foreach ($base as $k => $v) 
        { 
        $amount = 255 - $v; 
        $amount = $amount / 100; 
        $amount = round($amount * $factor); 
        $new_decimal = $v + $amount; 
     
        $new_hex_component = dechex($new_decimal); 
        if(strlen($new_hex_component) < 2) 
            { $new_hex_component = "0".$new_hex_component; } 
        $new_hex .= $new_hex_component; 
        } 
         
    return $new_hex;     
    } 
?> 

Example, making a new colour 50% lighter than the first: 
<? 
$myCol = "FFCC99"; 
$newCol = hexLighter($myCol, 50); 
?>

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