RGB To Hexadecimal

This algorithm converts RGB color model to hexadecimal color code.

• C#
• VB.Net
• C
• C++
• PHP

									class RGB
{
	public $R;
	public $G;
	public $B;
}

function DecimalToHexadecimal($dec)
{
	if ($dec < 1) return "00";

	$hex = $dec;
	$hexStr = "";

	while ($dec > 0)
	{
		$hex = $dec % 16;

		if ($hex < 10)
			$hexStr = substr_replace($hexStr, chr($hex + 48), 0, 0);
		else
			$hexStr = substr_replace($hexStr, chr($hex + 55), 0, 0);

		$dec = floor($dec / 16);
	}

	return $hexStr;
}

function RGBToHexadecimal($rgb) {
	$rs = DecimalToHexadecimal($rgb->R);
	$gs = DecimalToHexadecimal($rgb->G);
	$bs = DecimalToHexadecimal($rgb->B);

	return "#" . $rs . $gs . $bs;
}
								

Example

									$data = new RGB();
$data->R = 82;
$data->G = 0;
$data->B = 87;
$value = RGBToHexadecimal($data);
								

Output

									#520057