I am working on an interactive map (Leaflet with GeoJSON layers) showing the various ethnic groups of a certain country.
How would I go about developing a color scheme for over 26 different ethnic groups? I am working with qualitative data and want to pick a series of ‘unrelated’ colors but at the same time look really nice if all the ethnic groups layers are loaded at once on the map.
Can one strong dark color among a group of lighter colors ‘pop’ out of the map highlighting that particular facet of data against all others?
It seems that many of the online color scheme generators only generate a max of 12 colors.
Anyone have any advice on how to develop a palette of 26 colors?
26 colours is indeed impossible to distinguish..
Have you tried chroma.js? https://github.com/gka/chroma.js/
Here is a good example of using TopoJSON on leaflet with chroma.js: http://blog.webkid.io/maps-with-leaflet-and-topojson/