Loss of light (percent) in one metre of seawater*

violet blue-green yellow orange red

wavelength (micrometre) 0.30 0.40 0.46 0.50 0.54 0.58 0.64 0.70

oceanic water, most transparent 16% 4% 2% 3% 5% 9% 29% 42%

oceanic water, least transparent 57% 16% 11% 10% 13% 19% 36% 55%

coastal water, average 63% 37% 29% 28% 30% 45% 74%

*According to Jerlov.