About

magenta is:

• a hue color (chromatic)
• a pure color without additive.
• one of the percepted human colors.
• is used as primary color:
  • coordinate in a colorspace (for instance the cmyk colorspace)
  • in a cymk wheel
• is not found the visual spectrum
• located at 0 degree in the subtractive wheel (cymk)
• a minus color (subtractive color)
• used mostly in a subtractive color model - ie with pigment (painting, printing, inking) and not with light (screen, monitor,…)
• is a warm color

The complementary color in a additive model of cyan is green