https://blog.datawrapper.de/colors-for-data-vis-style-guides/#:~:text=Using%20only%20a%20small%20part%20of%20the%20color%20wheel%20or%20only%20a%20few%20hues%20for%20lots%20of%20categories%20can%20bring%20problems%20with%20accessibility Accessibility: colour blindness Colours should be distinguishable for colourblind readers