* Blue: This is the most common color, especially if the rain was light and the sun is out. The blue is often a deeper, richer blue than before the rain.
* Gray: Often the sky will still be cloudy after rain, giving it a gray appearance.
* White: If the clouds are thick and heavy, the sky will appear white.
* Yellow/Orange: If the sun is setting or rising after the rain, you may see beautiful yellow and orange hues in the sky.
* Green: Sometimes, after a particularly heavy rain, the sky can take on a green tint. This is usually caused by a combination of sunlight reflecting off water droplets and the presence of aerosols in the air.
Ultimately, the color of the sky after rain depends on the intensity of the rain, the time of day, and the weather conditions.