Eli5: Why do you see a very dark gray, but not quite black color in total darkness?

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You would think that you’d see a vantablack sort of shade or the darkest black in existence, but in total darkness, why do you see this dark gray color that isn’t quite black?

Try it. Go to a pitch-black room and open your eyes.

In: Biology

3 Answers

Anonymous 0 Comments

There’s actually a word for that: *eigengrau*. They believe it’s caused by photoreceptors registering false positives. Basically, even in situations where nothing is triggering any of your photoreceptors a certain percentage of them will just go ahead and fire anyway.

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