12.2 The colors module

The colors module contains color objects representing all of Pyxplot’s default colors. It also contains the following functions:

The colors.spectrum($spec,norm$) function returns a color representation of the spectrum $spec$, normalised to brightness $norm$. $spec$ should be a function object that takes a single input (wavelength) with units of length, and may return an output with arbitrary units.

colors.wavelength($\lambda $,$norm$)
The colors.wavelength($\lambda $,$norm$) function returns a color representation of monochromatic light at wavelength $\lambda $, normalised to brightness $norm$. A value of $norm=1$ is recommended for plotting the complete span of the electromagnetic spectrum without colors clipping to white.