The Colors of the Sky Some questions seem simple until you stop and think about them. One of these questions is, “What color is the sky?” At times, the sky looks blue. Fluffy white clouds can form in the sky, making the sky blue and white. Before it rains, the clouds can get dark and heavy. The sky can look gray. As the sun shines after it rains, a rainbow can form. Each evening, the sun sets. As the sun sets, it can make the sky look orange, pink or even purple. At night, the sky looks black except for the stars and the moon. “What color is the sky?” It seems like a simple question, until you stop and think about it. Can you think of another question that seems simple until you stop and think about it?