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Description Presented here is a vast gallery of many different forms of Optical Illusions. Whether these optical illusions are conveyed through fractals, photographs, architecture, art, or old fashioned pen and ink, they are bound to remind you that "seeing is not believing."

Caution!!!! Some of the optical illusions on this blog may cause dizziness or possibly epileptic seizures. The latter happens when the brain can't handle the conflicting information from your two eyes. If you start feeling unwell when using this website, immediately cover one eye with your hand and then leave the page. Do not close your eyes because that can make the attack worse.
Fractal of the Day Fractal of the Day
Provided By Sprott's Fractal Gallery


Three Color Optical Illusion

Below is an interesting optical illusion that I modified to fit the color scheme here. At first glance you may see four colors: black, purple, green and blue. In fact beside the black there are only two colors.

Three Color optical illusion
Three Color optical illusionThree Color optical illusion
Beside black these are the only two colors in the above image.

Check the RGB values yourself.


Ed said...
This comment has been removed by a blog administrator.
Ed said...

This didn't work for me, I only saw the two colours.

Anonymous said...

I didn't see the blue in today's optical illusion. What does that mean with regard to my vision. I have had both lenses removed and replaced during the standard cataract removal procedure. Does that make a difference?

Anonymous said...

I think the pixels are a tad too big for this illusion to work properly. If the picture was smaller, we would see the different colours.

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Bob said...

Cool! This is some really neat stuff.

Anonymous said...

Stupid. I only saw 2 colors as well. NOt a very good optical illusion...

Rob In China said...

I only saw three colors, purple, black and green, no blue. Maybe your should readjust the pixels and post again. SO, what does this mean in terms of visual illusions anyway? In other words, why do we only see 3 colors?

Shylah said...

Been awhile since anything new has been posted.. have you closed up shop?

Walt said...
This comment has been removed by a blog administrator.
Walt said...


I haven't closed up shop just been distracted with some family problems followed up by a personal illness. I think I see the light at the end of the tunnel and will be scouring the world anew for more interesting items.

Thanks for thanking the time to drop me a line,


Zsolt said...

Welcome back Walt!

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