• Green

• Wavelength: 495-570 nm
• Emotion: joy
• the center of the visible spectrum. peak of human visual sensitivity
• evolutionary signal: vegetation, photosynthesis, fertility, safety, abundance

• properties

  • the eye has more green-sensitive cones than any other — maximum discrimination in this range
  • lowest visual fatigue — the most restful color
  • the color of chlorophyll, the molecule that converts sunlight to life

• in nature

  • photosynthesis: the process that makes Earth habitable. green is the color of life itself
  • healthy vegetation: dense green canopy signals water, nutrients, food, shelter
  • camouflage: the baseline of the natural world, the color everything hides in
  • growth: shoots, sprouts, new leaves — green is the color of becoming

• in prism

  • confidence, success, health, growth, confirmation
  • the default positive state — what cyb feels like when everything works

• the deepest binding

  • chlorophyll absorbs red and blue, reflects green — the color of life is the wavelength life rejects
  • photosynthesis converts solar energy into chemical energy. computation converts solar energy into knowledge
  • the isomorphism between these two processes makes green the natural color of intelligence