Verses 27-28 of Chapter 35:

Do you not see that Allah sends down rainwater from the sky and we bring forth thereby a variety of fruits of different colors? In the mountains also there are streaks, white and red and black, with different hues. And likewise, men, beasts and cattle also have different colors. The fact is that only those of His servants, who possess knowledge, fear Allah. Surely, Allah is All-Mighty, All-Forgiving.