Edward Tufte recommended use of soft colors that do not tire the eyes. I’ve actually never read his books (yet), but a former boss of mine was a devout disciple and produced some beautifully soft color palettes.
Stephen Few, in “Show Me the Numbers,” reiterated Tufte’s color theories and recommended three sets of hues:
Light – for large shapes, e.g. bars
Medium – for small shapes, e.g. points
Dark/Bright – for calling attention to data
Click through for more including where you can get this Power BI theme. I’m not exactly the world’s biggest fan of the default palette so I’ll have to check this one out.