### Problem Hi, I think the [Color Universal Design](https://jfly.uni-koeln.de/color/) colorblind-friendly palette would be a great addition to matplotlib. As mentioned in https://github.com/mwaskom/seaborn/issues/3631 this would make sense to add as a categorical colourmap to matplotlib. ### Proposed solution I have created a repository with some examples of the palette you can take a look at: <https://github.com/mbhall88/cud>