Comment on How do you describe color to a person who has always been blind?

fubo@lemmy.world ⁨1⁩ ⁨year⁩ ago

Color is maybe more like sound than it is like texture, pressure, temperature, or scent/taste; but it doesn’t usually have resonance and beats like sound does.

One element of color is brightness. If you’ve felt sunlight and shadow on your skin, well, brightness is a lot like that. People who see use brightness and shadow to tell a lot about shapes of things, because things that are illuminated by light cast a shadow.

Another element of color is hue. If you’ve studied physics, you’ve encountered the idea of electromagnetic waves having frequencies, which is the same as photons carrying different amounts of energy. Hue is (mostly) just those frequencies, within the specific band that eyes can see. Paints and dyes affect which hues a surface reflects, because those chemicals resonate with those frequencies.

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