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Optical IllusionsOptical Illusion Gallery #1Optical Illusion Gallery #2Desktop WallpaperOptical Illusion Pictures #3 Crazy Illusions Cool Optical Illusion BackgroundCrazy Optical Illusion 3-D Optical Illusion Crazy Optical Illusion Painting Perspective Distance Fun Clown Face 8/4 Numbers Eye Trick Animal Faced Man Another After Image Effect Distorted Crazy Circle Cartoon Tunnel IllusionCool Impossible Cube Cool Impossible Object Cool Missing Puzzle PieceCool Painting Crater or Mound of Dirt? Crazy Cube Dalmation Four Eyes and Two Lips Handy Man Help With Puzzle Hidden Faces Hole in your Hand Horse is a frog! How the eye works Inverted Flag A Lesson in Perspective Line Length Man or Donkey? Missing 9 squares Pea Brain Sausage Finger Shades of RedPerfect Bug Illusion Spiral of Coolness Cube Q-bert Upside Down Czar Weird Black Lines What a Crowd! More eye tricks Sidewalk Chalk Art Funny Pictures AmbigramsOptical Illusion ArtistsFriends Sites & Links

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Cool Optical Illusion Collection #4


Spooky.
Scary.
skull table

Different Shades of the color Red
different shades of the color red

This is another one of those illusions that is so strong, so powerful, that you won't believe me until you actually take two peices of paper, or your hands and cover up part of the screen.

Here's what you should do: First, notice that the upper left shade of red looks much lighter than the shade of red in the lower right corner. Actually, this is NOT TRUE! The red is exactly the same shade. Second, to prove my point, cover up the top three "letters" with one hand, and the letter on the bottom with your other hand. Yes, that's exactly the same shade of red.

How does this optical illusion work? As you have probabbly guessed, it's because of the black and white outlines in the characters. When you put white next to any color, it will bring out the lighter characteristics of that color, as you can see in the example above. The same is true with black, the more black next to something, the more that the black will cause us to perceive the colors around it as darker.

Please rate this illusion/picture. Your ratings help us choose which new optical illusions to create:
Best of the Best ...
Most Popular for October 2009:
moving backgrounds

Same Shade Diamonds
Our newest optical illusion.
We just created it on 10/10/2009

Wow! It will look like the diamonds on the top are much darker than the diamonds on the bottom.

You won't believe how amazing this incredible optical illusion is.

moving backgrounds

Moving Backgrounds
Created 9/24/2009

It moves! You must zoom in to get the full illusion. You'll see the rings rotate, even though they are not moving at all.

We've created several sizes so you can use as your desktop background.

 

check out the Obama Illusion

Scary Faces Illusion
Created 9/17/2009

Watch as the scary faces disappear before your eyes.

The longer you stare the stronger the illusion. Perfect to send to your friends for Halloween!

 

check out the Obama Illusion

The Obama Illusion
We made this original Barack Obama Illusion and then we made it famous!

Stare for about 30 seconds and you'll see his ghostly image appear on the wall!

valentines day love test illusion

Valentines Day Love Test Illusion
This is one of our most highly rated illusions by our visitors. Watch the hearts disappear before your very eyes!

This is really cool. You'll start to see the hearts disappear as you fixate at the center. Don't miss it.

moving spiral

Moving Spiral Illusion
A version of our original moving spiral illusion was recently published in a popular college textbook.

It uses multiple illusory principles to give the illusion that it is moving when it is absolutely not moving. Big enough to be your desktop background!

instructions to make your own impossible triangle

Build Your Own Impossible Triangle
Instructions so you can build your own impossible triangle. Tell M.C. Escher that it's not so impossible after all!

Comes with a printable PDF guide with dotted lines for the folds and clearly marked lines to cut. See pictures of visitors submitted triangles too!

If you don't have time to see the hundreds of illusions today, see if you can at least catch all of these...

  1. Cool Optical Illusions Blog - Don't miss it!
  2. Love Test - Don't you just love optical illusions.
  3. Blue Spiral Wallpaper - Love it!
  4. Moving Spiral
  5. Scary Illusion
  6. Optical Illusion Collection
  7. Inverted American Flag
  8. Freaky Desktop Wallpaper
  9. Floating 3d Cube Sculpture - HOT
  10. Rotating Moving Spots - Very Strong.
  11. Build your own impossible triangle - A classic, one of our most popular of all time.
  12. Color Blindness Test - Better test yourself before it's too late, like it was for Dwayne in the movie Little Miss Sunshine!
  13. Illusion Links
  14. Jesus Illusion - Always fun, even if you've already seen it!

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Some optical illusions were created uniquely for this site, others are assumed to be in the public domain.