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How do we know colors?

Published in Color Perception 2 mins read

We perceive colors thanks to specialized cells in our eyes called cones. These cells are sensitive to different wavelengths of light, which correspond to different colors. When light enters our eyes, the cones send signals to our brain, which then interprets these signals as colors.

Here's a breakdown of how this process works:

  1. Light enters the eye: Light travels into the eye and reaches the retina located at the back of the eye.
  2. Cones detect light: The retina contains millions of light-sensitive cells called rods and cones. Cone cells are responsible for detecting colors.
  3. Signals sent to the brain: When light hits the cones, they send signals to the brain.
  4. Brain interprets colors: The brain receives and interprets these signals from the cones, allowing us to see different colors.

Here are some additional insights into color perception:

  • Different cones for different colors: We have three types of cones, each sensitive to a different range of wavelengths: red, green, and blue. Our brain combines the signals from these cones to perceive the full spectrum of colors.
  • Color blindness: Some people have color blindness, a condition where they are unable to distinguish between certain colors. This happens because they may lack one or more types of cones, or their cones may be malfunctioning.
  • Cultural influence on color perception: While our biological makeup determines how we perceive colors, culture and language can also influence our understanding and naming of colors.

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