Red is the color at the long wavelength end of the visible spectrum of light, next to orange and opposite violet. It has a dominant wavelength of approximately 625–740 nanometres. It is a primary color in the RGB color model and the CMYK color model, and is the complementary color of cyan. Reds range from the brilliant yellow-tinged scarlet... Wikipedia

  • Wavelength:  approx. 625–740 nm
  • Frequency:  ~480–400 THz
  • Hex triplet:  #FF0000
  • Source:  X11
  • Data source:  DuckDuckGo