## 2.2 The `colors` module

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

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