Make an array of colors and images

I'm using laravel and I have a form to create a product and add to the database, the product should have many colors and each color should have many images.

How can I make this?

I tried

<input type="file" name="images[]" class="form-control-file col-md-5" required value=""> 

<input type="text" name="color[]" value="" class="form-control col-md-2">

foreach($request->file('images') as $index => $file){
    $img = time() . $file->hashName();
    $picpath=$file->storeAs(
        'upload/images', $img );

    $imgdevice = new Images();
    $imgdevice->url = $img;
    $imgdevice->color = request('color')[$index];
    $imgdevice->save();

    $device->images()->attach($imgdevice->id);
}

How can I create these arrays and then post them to the database?

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