color palettes

Color palettes are a central tool in data visualization. Thus, it's important to learn which color scale to use when. And for any visualization using color, please make sure to use colorblind safe palettes:

color blind friendly palettes

If you just want a color blind color scale, here are some great resources:

• Okabe Ito colorblind safe palette: In addition to the linked palette, the website also gives good recommendations for colorblind proofing figures.
• Paul Tol's selection of color-blind sage palettes
• Color Brewer 2: With this interactive color palette chooser, you can select sequential, diverging and qualitative colo scales. It has a checkbox to restrict results to colorblind safe palettes. In R, these color palettes are directly available in the ggplot2 package via the scale_colour_brewer(), or generally in R via the RColorBrewer package.

If you're looking for a thorough introduction to the topic, datawrapper has you covered with a three-part blog series:

1. How your colorblind and colorweak readers see your colors
2. What to consider when visualizing data for colorblind readers
3. What’s it like to be colorblind