This is wrong, because white wine is made from red and white grapes. The truth is: only red wine is made from red grapes. This is due to the fact that in the production of red wine, the crushed grapes in the mashing apparatus come with the shell in the fermentation tank. Since the dyes are mainly in the covers, the red wine gets its color from these shells. The intensity of the color depends very much on the sunlight at the maturity of the grape. That is why German red wines are also naturally light in color.