Themosis\Validation\ValidationBuilder::validate_color PHP Method

    protected function validate_color($data, array $attributes = [])
    {
        return preg_match('/#([a-f]|[A-F]|[0-9]){3}(([a-f]|[A-F]|[0-9]){3})?\\b/', $data) ? $data : '';
    }