• Kalash@lemmy.world
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    1 year ago

    so you see 71 if your color vision is different.

    I have mild Deuteranopia and there is no hint of a 7.

    21 or maybe 81.

    • LazaroFilm@lemmy.world
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      1 year ago

      I see why you would see that for the 7. You’re relying on the brightness of the dot instead of the tint I’m guessing.

      I suspect my 5 years old to have some low color blindness, he couldn’t see the numbers in some circles I showed him.

      • Kalash@lemmy.world
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        1 year ago

        The meme actually uses the exact same image as the wiki page about the tests. https://en.wikipedia.org/wiki/Ishihara_test

        The number “74” should be clearly visible to viewers with normal color vision. Viewers with red-green color blindness will read it as “21”

        So at least I’m seeing what I was supposed to see!

        • zefiax@lemmy.world
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          1 year ago

          so with your 21, do you actually see a colour difference between the numbers and the circle or is it a brightness difference?

          • Kalash@lemmy.world
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            1 year ago

            Yeah, the number is in green and the background circles are light brown to beige.

            • zefiax@lemmy.world
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              1 year ago

              That is absolutely fascinating as I can’t see any hints of a 2 or how what I see as 7 becomes a 2.

              • Kaijobu@discuss.tchncs.de
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                1 year ago

                I think I found the 2. Look at the 7 again and slightly to the right of it. The background dots are colored slightly darker brown compared to the rest of the background. Trying to focus on these brown dots instead of the green 7, you can make out the slightly shifted 2.

                Didn’t see it until many people here referred to a 2.