In night time, only rods are active and human can not perceive color. You could test this out yourself at home, and you would perceive every color as black, white or different shades of grey. When you turn the light on, the same shade of grey might turn out to become totally different colors.
In night time, only rods are active and human can not perceive color. You could test this out yourself at home, and you would perceive every color as black, white or different shades of grey. When you turn the light on, the same shade of grey might turn out to become totally different colors.