According to Sarah Keith-Lucas from BBC Weather, "dust, pollution, water droplets, and cloud formations" can influence the colors of the sky, too.Occasionally, pink and purple will appear more ...

The blue light gets more easily scattered, ... The phenomenon of scattering is also why the sky turns red, orange, and pink at sunset. Crucially, you need some cloud to see this.

Earlier that year, the Chinese city of Shanghai was smog cloaked the city in a magenta cloud. The reason we see blue light in the sky on a clear day is because blue and violet wavelengths of light ...