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 ...

Have you ever stopped to think that the colors of your clothes or the tone of your office walls might say a lot about you? According to psychologists, color choice goes far beyond aesthetics — it can ...

When our eyes perceive the image as a whole, we see what looks like red strawberries under a bluish-green tint. But in a total #TheDress move, this image is actually made up of only blue and black ...

This traffic light isn't actually red - how mind-boggling optical illusion tricks your BRAIN A picture of a traffic light has gone viral on TikTok, as all is not as it seems ...

A heat map of brain activity shows stable patterns before and after taking psilocybin in blue and green, while temporary changes are shown in red, orange and yellow. Sara Moser via Washington ...