Awesome, Same color illusion
The same color illusion—also known as Adelson's checker shadow illusion, checker shadow illusion and checker shadow—is an optical illusion published by Edward H. Adelson, Professor of Vision Science at MIT in 1995.[1] The squares A and B on the illusion are the same color (or shade), although they seem to be different. This can be proven by sampling the colors of A and B in an image-editing program, which will show that they are in fact the same color. By erasing everything except the two labelled squares, the effect of the illusion can be removed.
Squares A and B are the same color.
A rectangle of the same color has been drawn connecting the two squares.
via en.wikipedia.org
