Wavelength to RGB and HEX Calculator
   --- 443130 wavelengths served to date ----
Wavelength (nm):

Wavelength: 498nm

Red: 0   Green: 255   Blue: 153

RGB Hex: #00FF99

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The ASP used behind the scenes is based on an
algorithm from Dan Bruton's Color Science Page:
http://www.physics.sfasu.edu/astro/color.html