Optillusions (Optical Illusions)

Jan 11
Though not strictly an optical illusion, the Isihara Color Blindness test illustrates the variability of human perception. The numeral “82” here is clearly visible to viewers with normal color vision.

Though not strictly an optical illusion, the Isihara Color Blindness test illustrates the variability of human perception. The numeral “82” here is clearly visible to viewers with normal color vision.


  1. youshallnotpassthistest reblogged this from optillusions and added:
    Not seeing the 82
  2. dobsonfrith reblogged this from optillusions
  3. myfavouritethings1 reblogged this from optillusions
  4. droawt17 reblogged this from optillusions
  5. djgatsby reblogged this from optillusions
  6. oggraphics reblogged this from optillusions
  7. caro2260 reblogged this from optillusions
  8. katelynbrianne21 reblogged this from optillusions
  9. danderboy reblogged this from optillusions and added:
    I can’t see 82 can you?
  10. take-me-into-your-dreams reblogged this from optillusions
  11. shesalwaysconfused reblogged this from ohioisforlover and added:
    i dont have a normal color vision.
  12. ohioisforlover reblogged this from optillusions
  13. filmscorefan reblogged this from voxelectron
  14. voxelectron reblogged this from optillusions
  15. dolphin7161 reblogged this from optillusions
  16. counting-the-celestial-bodies reblogged this from optillusions
  17. acmesalesrep reblogged this from greengoldandgrey and added:
    Actual tests here: http://offsetpressman.blogspot.ca/2009/10/color-blindness-test-for-printers.html
  18. greengoldandgrey reblogged this from brainstatic and added:
    pizza
  19. brainstatic reblogged this from catsandmisandry and added:
    If it makes you feel any better, this is a joke tumblr and the image has no 82 in it, so everyone looking at it sees a...
  20. apiordascocainas reblogged this from optillusions
  21. kazisho reblogged this from optillusions
  22. vegar-ask reblogged this from optillusions
  23. chirpydeanne reblogged this from optillusions
  24. door reblogged this from afgurri and added:
    Don’t worry, Adam, there’s no 82. But show it to your brother and insist there is, that’s always good fun.
  25. afgurri reblogged this from tbridge and added:
    Color blind person over here, don’t know if the rest of you can see an 82 but I can’t.