A library for creating useful colour maps for different astrophysical properties, that relies on Gilles Ferrand's colourspace. Accepted by the Astrophysics Source Code Library https://ascl.net/2401.005. If you use this code for your publication please use this record for your citation. E.g. English, J., Richardson, M. L. A., Ferrand, G., and Deg, N. 2023, version 1, Astrophysics Source Code Library,record ID ascl:2401.005.(Previous link https://ascl.net/code/v/3580.)

Tutorials, in the form of Jupyter Notebooks (Python 3), highlight different features:

1. 1. Plot Spectral Index.ipynb shows the Spectral Index colour map tools.
2. 2. Plot Spectral Index Error.ipynb shows how to make a spectral index error map.
3. 3. Plot Velocity Fields.ipnb demonstrates how to create velocity field maps. by Mark Richardson, Jayanne English, Gilles Ferrand and Nathan Deg.

Full descriptions of the perceptual elements are presented in the tutorials along with explicit examples of python code.