Eye IllusionsDecide promptly, but never give any reasons. Your decisions may be right, but your reasons are sure to be wrong. - Lord Mansfield
Home Gallery of Optical Illusions Optical Illusion Quiz
spc Bd 1 Bd 3
Share This Page

Contrast Grid Optical Illusion

Is there any gray where the lines intersect?

See Another Random Optical Illusion


How many colors do you see in this optical illusion?


Scroll down for the explanation.




There is no gray, but did you notice the gray spots at the intersections?
Most people do. Neat, huh?


The eye, which responds to an amazingly wide variety of light sources from moon light to direct sunlight, tries to adjust to the present light levels. In this optical illusion, the contrast between the dark and light is so strong that the light area ends up looking gray.

You can read more about color perception here.

Play a Game

Have some fun playing the age old game of Tic Tac Toe. It's fun.
Play TicTacToe
Suggestions and Comments Link To This Site Send To A Friend Some Related Links Link To Our Site Map

Report A Broken Link To Us Contact Information

Free Optical Illusions

Visual Illusions


Site Map | Terms of Use | Privacy & Security | Contact Us | Purchase Agreement | Send Feedback
Cool Optical Illusion Pictures
© 1996-2005 by Illusion-Optical.com All Rights Reserved.