This trippy image appears to be a pigment enigma. Puzzle lovers are straining their brains over this optical illusion, which reportedly fools the viewer into thinking that they have gone colorblind.

A head-scratching optical illusion challenges the perception of color and how the brain plays tricks on us. In an image created by the UK contact lens vendor Lenstore, a series of lilac letters ...

This color illusion works by exploiting how your visual system handles color memory — stare at an image long enough and your retinal cells get fatigued, causing you to see phantom colors in a ...

This optical illusion reveals how a person’s brain can change the color of the objects that they see. Experimental psychologist and artist, Akiyoshi Kitaoka, from Kyoto, Japan, posted a clip of the ...

So I've read in more than a few places that color doesn't exist outside our heads, it's just wavelengths of light. That our brains are the things that make color, same with sound (which is just ...

Kate Bacon has a bachelor's degree in integrative physiology. The science whiz shared that the color cyan is rarely seen because most screens can't display it. One way to see true cyan is to use the ...

While new optical illusions go viral all the time, here are some of the most famous illusions that have kept us scratching our heads for years.

Even if you have perfect vision, you can't always trust your eyes. The image above created by Lenstore illustrates this. The circle on the left appears to be a lighter shade of blue than the circle on ...