Laser Wavelength Chart shows the colors of visible light spectrum and associated wavelength in nanometers:
Wavelength determines the color, beam visibility of laser pointer.
● The visible colors from shortest to longest wavelength are: blue violet (405nm), blue (445nm, 460nm), pure blue (473nm), green (532nm), yellow (589nm) and red (635nm, 650nm).
● Ultraviolet radiation has a shorter wavelength than the visible violet light.
● Infrared (808nm, 980nm, 1064nm) radiation has a longer wavelength than visible red light.