public function __construct($hue, $saturation, $lightness)
{
parent::__construct($hue, $saturation);
$this->lightness = MathUtil::capValue($lightness, 0.0, 1.0);
}
public function __construct($hue, $saturation, $value)
{
parent::__construct($hue, $saturation);
$this->value = MathUtil::capValue($value, 0.0, 1.0);
}