ColorBrewer

ColorBrewer is an online tool for selecting map color schemes based on palettes created by Cynthia Brewer.

Suggested color schemes are based on data type (sequential, diverging, or qualitative).

[3] Valid names and a full color representation for each palette are shown below.

If this is viewed in a compliant browser, moving the mouse cursor over each box will pop up the corresponding color number as a tooltip.

In 2018, climate scientist Ed Hawkins chose the eight most saturated blues and reds from the ColorBrewer 9-class single-hue palettes in his design of warming stripes graphics, which visually summarize global warming as an ordered sequence of stripes.