Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
The color palette was created for 4 data classes using ColorBrewer by selecting the qualitative scheme and the color blind safe option. Although the palette is color blind safe, individuals with the very rare tritanopia will have a hard time distinguishing the classes.
