Red-green and yellow-blue are the so-called "forbidden colors." Composed of pairs of hues whose light frequencies automatically cancel each other out in the human eye, they're supposed to be ...

Truly deep red, green and blue just aren't possible, and without them, all the other colors are limited as well. Since we're getting a new resolution standard known as 4K/UHD ...

We are so used to the oceans being blue we use it as a signifier everyone recognizes on maps. However, the color is not inevitable, and new evidence has emerged that green was the dominant color for a ...

Deuteranopia refers to red-green color blindness. This is the most common type of color vision deficiency, which is usually genetic. Learn more about what causes it, testing, corrective lenses ...