We gratefully acknowledge the color schemes developed by Cindy Brewer.

Copyright (c) 2002 Cynthia Brewer, Mark Harrower, and The Pennsylvania State University. All rights reserved.

Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

  1.  Redistributions as source code must retain the above copyright notice, this list of conditions and the following disclaimer.
  2.  The end-user documentation included with the redistribution, if any, must include the following acknowledgment: This product includes color specifications and designs developed by Cynthia Brewer ( Alternately, this acknowledgment may appear in the software itself, if and wherever such third-party acknowledgments normally appear.
  3.  The name "ColorBrewer" must not be used to endorse or promote products derived from this software without prior written permission. For written permission, please contact Cynthia Brewer at
  4.  Products derived from this software may not be called "ColorBrewer", nor may "ColorBrewer" appear in their name, without prior written permission of Cynthia Brewer.

The colors database now includes other color schemes as well.

last revision 11/12/2016