On a clear day, the color of the sky is typically a vibrant blue. This phenomenon occurs due to Rayleigh scattering, where sunlight interacts with the Earth's atmosphere. Shorter wavelengths of light, such as blue, scatter more than other colors, creating the impression of a blue sky. The intensity of the blue can vary based on factors like pollution, humidity, and the time of day. During sunrise and sunset, the sky can display a beautiful gradient of colors, but in the mid-day, it usually remains a bright blue, offering a clear and open feel.