Php convert string to hex color

Question

I agree with sje397 above that completely random colours could end up looking nasty. Rather than make a long list of nice-looking colours, I would suggest choosing a constant saturation+luminescence value, and varying the hue based on the content. To get an RGB colour from an HSL colour, you may use something similar to what's described in http://en.wikipedia.org/wiki/HSL_and_HSV#Converting_to_RGB .

Here's an example (try it in http://codepad.viper-7.com something that works, such as https://codepad.remoteinterview.io/ZXBMZWYJFO):

 $word) {
    $col = hsl2rgb($h/0xFFFFFFFF, 0.4, 1);
    printf('%s ', $col, $word);
}
?>

Generate a unique color based on text input

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	/*
	* Outputs a color (#000000) based Text input
	*
	* @param $text String of text
	* @param $min_brightness Integer between 0 and 100
	* @param $spec Integer between 2-10, determines how unique each color will be
	*/

	function genColorCodeFromText($text,$min_brightness=100,$spec=10)
	{
	// Check inputs
	if(!is_int($min_brightness)) throw new Exception("$min_brightness is not an integer");
	if(!is_int($spec)) throw new Exception("$spec is not an integer");
	if($spec < 2 or $spec > 10) throw new Exception("$spec is out of range");
	if($min_brightness < 0 or $min_brightness > 255) throw new Exception("$min_brightness is out of range");


	$hash = md5($text); //Gen hash of text
	$colors = array();
	for($i=0;$i<3;$i++)
	$colors[$i] = max(array(round(((hexdec(substr($hash,$spec$i,$spec)))/hexdec(str_pad('',$spec,'F')))255),$min_brightness)); //convert hash into 3 decimal values between 0 and 255

	if($min_brightness > 0) //only check brightness requirements if min_brightness is about 100
	while( array_sum($colors)/3 < $min_brightness ) //loop until brightness is above or equal to min_brightness
	for($i=0;$i<3;$i++)
	$colors[$i] += 10; //increase each color by 10

	$output = '';

	for($i=0;$i<3;$i++)
	$output .= str_pad(dechex($colors[$i]),2,0,STR_PAD_LEFT); //convert each color to hex and append to output

	return '#'.$output;
	}
	?>

programming php Js color hash String to hex Hex to RGB

Php convert string to hex color

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