Thank you so much for that link!

It provides a number of colour palettes for different purposes (sequential data, e.g., 1, 2, 3, 4, 5, diverging data, e.g., –2, 1, 0, 1, 2, or qualitative data, e.g., A, B, C, D, E) and in different sizes.

For each colour palette, it has information on whether the colours are suitable for colour blind people, for black and white printing, for use with projectors, etc. And the colours all look ‘nice’ (e.g., no bright cyan to hurt your eyes!).

There’s even an R implementation.

I’m not sure what this color scheme is intended for (if anything) but I suspect this is a good way to pick colors for graphs and charts. I usually start with black, red, blue, green, and so forth but one problem is that before long I wind up with colors which will be difficult for color blind people to distinguish. One solution to that is to take for example the red and green and tint them differently, but of course the resulting collection of colors looks haphazard. My guess is that by choosing ‘impure’ colors which are pleasing together one will generally also have a palette with colors which are distinct to color blind people as well.