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 ...

You might say it’s just a pigment of your imagination ...

The human eye perceives color using three types of cones, but no natural light can stimulate just the the cones associated with medium-wavelength light in the visible spectrum. A new tool, nicknamed ...

It’s that time of the year. The leaves are starting to change colors. This week the National Weather Service in Atlanta shared the satellite image above showing fall foliage changes in the Appalachian ...

When it comes to creating the perfect sleep environment, most people focus on the mattress, pillows, blackout curtains, or sound machines. But one of the most overlooked — and most powerful — factors ...

Is color just a physiological reaction, a sensation resulting from different wave lengths of light on receptors in our eyes? Does color have an effect on our feelings? The phenomenon of color is ...

Think about the colors of the world around you—the blue of a cloudless sky, the green of a new leaf, the blazing red of a tulip’s petals. We see these colors because of the way our eyes work. But what ...