RGB and Hex Color to Wavelength Calculator

Enter a color in RGB or Hexadecimal format and get the nearest wavelength.
Not all colors can be reproduced with a single wavelength, this may cause some colors not to return a good match.
This may be most apparent with colors like pink, grey, or white.

Enter a Color:

Color input examples for HEX and RGB:

130, 0, 200
0,183,255
#FF3300
65FF00

It’s important to note that RGB values do not fully describe the color of a light or surface, as they do not take into account the spectral properties of the light.
As a result, converting from RGB to wavelength values only provides an approximation.

Looking to convert a wavelength to RGB?
Try the Wavelength to Color Converter instead.