Proper colormaps for scientific plots (not rainbow!):

• Matplotlib:
  • https://matplotlib.org/tutorials/colors/colormaps.html
• Colorbrewer:
  • https://colorbrewer2.org/
• CET:
  • https://peterkovesi.com/projects/colourmaps/
• Scientific colour maps:
  • http://www.fabiocrameri.ch/colourmaps.php
• The yt project:
  • https://yt-project.org/doc/visualizing/colormaps/index.html

References:

• D. Borland and R. M. Taylor Ii, Rainbow color map (still) considered harmful, IEEE Computer Graphics and Applications 27 (2007) 2, 14-17.
• R. Kosara, How the Rainbow color map misleads, https://eagereyes.org/basics/rainbow-color-map (2013).
• F. Crameri, G.E. Shephard, and P.J. Heron, The misuse of colour in science communication, Nature Commun. 11 (2020) 1, 5444.