But why does the total lunar eclipse look bronzed? This is because sunlight is composed of red, orange, yellow, green, blue, indigo and purple. When sunlight passes through the atmosphere and refracts to the shadow behind the earth, yellow, green, blue, indigo, purple and other colors of light are scattered in all directions because of the short wavelength and the influence of the earth's atmosphere. Red light waves are relatively long and are not affected by scattering. It can pass through the atmosphere and refract to the moon hidden behind the earth's shadow. So during the total lunar eclipse, we saw that the moon was bronzed.