Red

Red is the color at the longer-wavelengths end of the spectrum of visible light next to orange, at the opposite end from violet. Red color has a predominant light wavelength of roughly 620–740 nanometers.Light with a longer wavelength than red but shorter than terahertz radiation and microwave is called infrared.

Red

Red is the color at the longer-wavelengths end of the spectrum of visible light next to orange, at the opposite end from violet. Red color has a predominant light wavelength of roughly 620–740 nanometers.Light with a longer wavelength than red but shorter than terahertz radiation and microwave is called infrared.