When someone says “as white as snow,” it’s easy to envision what they’re talking about. We often think of snow as a dazzling ...

Fresh snow can look like a blank sheet of paper, so bright it almost hurts to stare at in midday sun. Yet at the microscopic level, those flakes are not white at all, and the color we think we see is ...

An object's color appears differently under different lighting and against different backgrounds — for different viewers. But that doesn't mean colors are subjective. When you purchase through links ...