Question

Why are clouds white in color

Answer 1

Water droplets disperse the wavelengths of light evenly, so no color predominates and the clouds appear white.

Answer 2

with the water droplets, which are much bigger than the atmospheric particles that exist in the sky.

When sunlight reaches an atmospheric particle in the sky, blue light is scattered away more strongly than other colours, giving the impression that the sky is blue.

But in a cloud, sunlight is scattered by much larger water droplets. These scatter all colours almost equally meaning that the sunlight continues to remain white and so making the clouds appear white against the background of the blue sky.