This is a Utility you can use to customize the UI for a Product Detail Page. Call ColorUtil.getDarkVibrantColor in your PDP and define what to do when color is found.

ColorUtil.java

public class ColorUtil {

  private Product currentProduct;

  private OnColorFoundListener mOnColorFoundListener;

  public void getDarkVibrantColor(Context context, Product product, OnColorFoundListener listener) {
    currentProduct = product;
    if (currentProduct.color != 0) {
      listener.onColorFound(currentProduct.color);
    } else {
      mOnColorFoundListener = listener;
      Picasso.with(context).load(product.image_url).into(target);
    }
  }

  private Target target = new Target() {
    @Override
    public void onBitmapLoaded(Bitmap bitmap, Picasso.LoadedFrom from) {

      Palette.generateAsync(bitmap, new Palette.PaletteAsyncListener() {
        public void onGenerated(Palette palette) {
          int bgColor = palette.getDarkVibrantColor(Color.BLACK);
          currentProduct.color = bgColor;
          mOnColorFoundListener.onColorFound(bgColor);
        }
      });
    }

    @Override
    public void onBitmapFailed(Drawable errorDrawable) {}

    @Override
    public void onPrepareLoad(Drawable placeHolderDrawable) {}
  };

  public interface OnColorFoundListener {
    void onColorFound(int color);
  }
}