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.
These color palettes are based on the ColorBrewer schemes. They comprise different classes and are given specific names in ColorBrewer: sequential (9-class Blues), diverging (11-class RdBu), and qualitative (12-class Paired).
