Why isn't the sky purple?

The sky appears blue because of the way Earth's atmosphere scatters sunlight. Blue light is scattered more than other colors because it travels in shorter, smaller waves. This scattering effect makes the sky look blue to our eyes. If the sky were to appear purple, it would mean that shorter wavelengths of light, like violet, are being scattered more than blue light. However, this is not the case in our atmosphere, so the sky does not appear purple.