• Violet

• Wavelength: 380-420 nm
• Emotion: fear
• the shortest visible wavelength, bordering ultraviolet — the edge of perception
• evolutionary signal: high-energy radiation, cellular death, the boundary of the known

• properties

  • highest photon energy in the visible spectrum
  • UV radiation (just beyond violet) induces apoptosis — programmed cell death
  • the color of bruising: blood pooling under skin, tissue damage
  • historically associated with royalty, mystery, the sacred — things beyond ordinary reach

• in nature

  • UV radiation: invisible, dangerous, causes DNA damage and cancer
  • bruising: the visible aftermath of trauma
  • twilight violet: the last light before total darkness
  • rare in nature — few organisms display violet, reinforcing its strangeness

• in prism

  • unknown threat, unverified source, irreversible action, boundary warning
  • the color of the edge — where the cybergraph ends and the unknown begins