Why are clouds white?

There are three primary colors: red, green, and blue. There are also three secondary colors that are created when you combine red and blue: violet. Red and green: yellow. Green and blue: cyan.

By combining all of the colors, you will get white.

In the same way that skies are blue because of scattering, clouds are white because their water droplets or ice crystals are large enough to scatter the light of the six wavelengths (red, yellow, green, cyan, blue, and violet), which combine to produce white light. White means all colors are present.

Color is light energy emitted in a way called the visible spectrum. It's visible but there are other forms that are not visible, like infrared or microwave energy.

The different levels of visible light energy have different colors because they have different wavelengths. If all colors of the visible spectrum are present, then the shade of light is white. If no light at all is seen, then the shade is black.