Leafo\ScssPhp\Compiler::libHsla PHP Method

    protected function libHsla($args)
    {
        list($h, $s, $l, $a) = $args;
        $color = $this->toRGB($h[1], $s[1], $l[1]);
        $color[4] = $a[1];
        return $color;
    }