Contrast Blocks Optical IllusionThe medical world has verified that laughter releases endorphins, God's natural painkillers, which are fifty to one hundred times more powerful than morphine. - Marilyn Meberg
Home Gallery of Optical Illusions Optical Illusion Quiz
spc Bd 1 Bd 3
Share This Page

Contrast Blocks Optical Illusion

Do you see gray anywhere in this two colored illusion?

See Another Random Optical Illusion


Do you see the gray spots in the white intersections in this optical illusion?


Scroll down for the explanation.




Did you notice the gray spots at the intersections?
You can make the gray go away by covering either side of a narrow row between the blocks with paper.


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 black and white is so strong and irregular that the white ends up looking gray.

You can learn more about color perception.

Test your Reactions

How fast are your reactions? Click this button to find out.

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 All Rights Reserved.