Physicists and vision scientists are lining up behind a provocative claim: the rich color we call purple is not a property of light at all, but a story the brain tells itself. Light in the real world ...

The eye is essentially a biological camera. It uses the light around us to create spectacular images that help us navigate ...

Purple: It's the color of Barney the dinosaur, certain iris blooms, and eggplant. However, scientists now say that the color we know as purple may not actually exist. That is going to come as ...

A new optical illusion excellently illustrates just how finicky our eyes are when it comes to perceiving colors. Unfortunately, staring at it too long with a friend may kick off an argument much like ...

Pupil size in people with synesthesia changed depending on how bright or dark the perceived colors were.

You're introduced to someone and your attention catches on their eyes. They might be a rich, earthy brown, a pale blue, or the rare green that shifts with every flicker of light. Eyes have a way of ...

Structural color design faces the challenge of non-unique mappings between color and nanostructure. Researchers developed a ...

Butterfly wings get their color in ways that almost feel impossible. Up close, each wing is made of countless tiny scales that either hold pigment or manipulate light. The oranges, reds, and browns ...