We recently got a question on Ask a Cartographer that related to the use of a restricted color ramp. The person asked, "Is there an easy way that I can make all the counties in one state variations on one hue, but each state a different colour so that the map readers can easily distinguish between states and counties?" The solution is a restricted color ramp and it can be used in many different situations. For example, on this web site it is used to differentiate the various world regions (not exactly continents as Japan is a separate region and most of Indonesia is grouped with Australia) Read More...
