Paul Tol Medium-ContrastThis is the bright scheme from Paul Tol: https://personal.sron.nl/~pault/#sec:qualitative #6699CC #004488 #EECC66 #994455 #997700 #EE99AA#6699CC#004488#EECC66#994455#997700#EE99AA["#6699CC", "#004488", "#EECC66", "#994455", "#997700", "#EE99AA", ]