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By on September 19, 2010, with 39 Comments

Aerol E. Catubag created this simple, yet effective optical illusion involving colors! As Aerol explains, he discovered the illusion accidentally when trying to make a kaleidoscopic image. The illusion happens when you move your head back and forth. Watch the colors change their size, depending on your actions. For example, the blue box will seem to expand when you move forth, but the exact same box will shrink when you move your eyes further away.

Btw, am not sure how many of you noticed, but when I talked about site upgrades – some of them are already implemented! You can now reply to other person’s comment, but what I’m even more excited to announce – now you can freely embed pictures in your comments! Yes, simply click on the “add some images” link next to the comment submit button, enter a link where image is hosted and voila! Go ahead – try it!

Simple, Yet Effective Illusion

Move your head back and forth, and watch the colors change their size!


39 Responses
  1. Ember Mclain Fan says:

    I’m sorry about the fake name, but it was necessary, I don’t know the site very well, so, you understand, right?

  2. AccccA says:

    Wow! I got about 6-7 feet away from the picture! The green part almost dissapeeared!

  3. Bob says:

    Also, staring at the center mark, the surrounding pinks and reds turn grey.

  4. vizard says:

    am getting addicted to this site. great job guys..!

  5. Bryce says:

    Thanks for making this site available to us and for the improvements! This is one of my favorite sites, and I appreciate the work you put into it.

  6. Antoine Lowray says:

    Less is more

  7. jan says:

    I know why it seams to grow when you get nearer.

    The center of the eye focuses on the recognition of colours and is less receptive to brightness.

    When you get nearer, the center of the eyes are relatively smaller on the screen, while more part of the blue gets into the peripheral sight, that recognizes more brightness, thus making the blue part look bigger.

    Notice the blue just grows into the dark blue part. Because of the peripheral sight.

  8. anon says:

    Not all illusions have to be complex to be cool.

  9. demoniclink says:

    grilled cheeses is good

  10. tina says:

    very simple but very clever

  11. Jess says:

    Looks great, simple but very effective

  12. Mr Stupid says:

    Am I missing something?

    “For example, the blue box will seem to expand when you move forth, but the exact same box will shrink when you move your eyes further away.”

    That’s not an illusion it’s just perspective and happens with everything you go closer to or go further away from.

    I just went to get a beer from the fridge…the fridge got bigger when I walked up to it and now I’m back on the sofa it looks a lot smaller.

    • User1 says:

      True, but did the fridge appear to grow relative to the cabinets around it or did everything grow as you walk towards that wall?

      The effect makes it look like some colors are shrinking while others are growing.

  13. Odd effect, naturally things would seem larger when moving closer and smaller when moving away but this is like 3D without the glasses O_o

    p.s. I like the idea of images but make sure you monitor the forum closely.


    • DetectiveKitty says:

      it’s even more interesting because it’s a lot quicker…i mean things get smaller the farther you go away but not at the speed of the illusion, btw is that picture from unrelated captions?

  14. Theo says:

    Most important is the view angle -
    If kept to the same , there is no effect.

  15. Ember Mclain Fan says:

    What the heck is a URL? O.o

  16. Valerie says:

    Not really loving this. The colours are lovely and everything but the illusion is just to basic. I do love all the new features though

  17. gEEKEd says:

    The eye of Sauron!

  18. smarttopolistherism says:

    my submetial coment sugggests that reversing the image contridects the fact of a mind twister.

  19. smartopolistherism says:

    for the dumb people out there it means the computer does all the work.

  20. Chris says:

    i like the comment idea, although, i like the blue border of the website better

  21. Joshua Baggott says:

    mr stupid, it doesnt mean shrink in general, but in relation to the rest of the colours – i.e. less of the picture will be blue and more will be red

  22. madison hunt says:

    wow im emo and im gonnia say umm its cool….needs more dark….

  23. sieve says:

    Here’s another effect: Focus on the twin centre lines, & move head leftright (or rock leftright). The green band will “waver”, almost like a snake!

  24. Mark says:

    oops i meant to put in an image

  25. Arya says:

    Does anyone else see the green bar moving and getting brighter and darker? All the colors seem to move for me.

  26. Emmaskabalo says:

    Help me out here sumbody.i dnt see anything.i only see houses.but where’s d dragon?

  27. no one says:

    don’t understand it

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