Wavelength to Colour Converter
Converts a wavelength in nanometres to the colour a human observer perceives. The visible spectrum runs from roughly 380nm at the violet end to 700nm at the red end — a very narrow slice of the electromagnetic spectrum.
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Input
Result
- Spectral Color
- Green
- RGB Representative Hex
- #00FF00
- Wavelength Input
- 532 nm
About
What the Wavelength to Colour Converter does
The conversion is inherently approximate. Screens produce colour by mixing three primaries, whereas a single wavelength is pure monochromatic light. Many spectral colours, particularly in the deep violet and saturated green regions, simply cannot be reproduced exactly on an RGB display.
How it works
Using the Wavelength to Colour Converter
- 1Enter a wavelength in nanometres.
- 2It is checked against the visible range of roughly 380-700nm.
- 3The wavelength is mapped to approximate RGB primaries.
- 4Intensity is reduced near the edges of vision, where sensitivity falls off.
- 5The resulting colour and its hex value are displayed.
Use cases
What people use it for
- Visualising a laser or LED wavelength
- Teaching the visible spectrum
- Illustrating spectroscopy data
- Choosing a colour to represent a specific wavelength
FAQ
Frequently asked questions
6 related
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