select2 laravel selected data not working

iam trying to fetch the data in select but it is not showing anything??

//Controller query
$productColor = Product::where("id","=",$id)->select('product_color')->pluck('product_color')->toArray();




<select class="form-control color" style="width: 315px; height: 39px !important; background-color: #1a2035 !important;" value="{{ $data->product_color }}" name="product_color[]" placeholder="Enter Colors" multiple="multiple">
                                      @foreach($colors as $color)
                                        <option value="{{ $color->color_hexcode }}"
                                            {{ in_array($color->color_hexcode,$productColor) ? 'selected' : '' }}
                                        >
                                            {{ $color->color_name }}
                                        </option>
                                      @endforeach
</select>