Now science wants to tell us that it's merely an optical illusion? That's the suggestion behind the argument that purple ...

While violet hits your eye with a specific wavelength, purple only exists in your perception — a clever construct built from conflicting input.

At first glance, the image seems like a simple bunch of grapes. However, if you take a closer look, you’ll notice something ...

Purple, a color often associated with royalty ... To get an idea of what this optical illusion is about in more detail, we have to see how our eyes work. Human vision includes three kinds of ...

The illusion was shared online with a simple challenge: find the hidden cat among the blueberries. The image shows a pile of ...

THIS mind-boggling optical illusion is bound to get you scratching your head - especially since only 9% of people can spot the trick. Everyone can see see the iconic painting in black and white ...

Optical Illusion: The latest craze among netizens ... and all the elephants are not of the same colour. Some are purple, some are light pink, some are white while the others are dark pink in ...