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heatmap-palette

★ 20 Open GitHub ↗

A colorblind-friendly heatmap palette

// repository documentation

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heatmap-palette
===============
![alt tag](https://raw.githubusercontent.com/wistia/heatmap-palette/master/heatmap-bar.png)

This **colorblind-friendly** heatmap palette relies on a green-to-red spectrum, which typically implies intensity or activity. For the red/green colorblind, however, these hues are particularly difficult to distinguish bewteen. Most colorblind-friendly solutions rely on a different set of hues altogether (usually yellows and purples) to solve this problem, but this palette maintains the red/green symbolism while achieving deuteranopic legibility by varying the perceived brightness of the hues.

The end result is a heatmap spectrum that reads intuitively for the fully-sighted as well as those with varying degrees of red/green colorblindness. To read more about its development and see examples, visit [Wistia's blog post about it] (http://wistia.com/blog/heatmaps-for-colorblindness).

The hues that compose this palette:
![alt tag](https://raw.githubusercontent.com/wistia/heatmap-palette/master/heatmap-palette-normal.png)

How those hues appear through a deuteranopia-type filter:
![alt tag](https://raw.githubusercontent.com/wistia/heatmap-palette/master/heatmap-palette-filter.png)

The use of these colors is strongly encouraged, and permitted under the [MIT license](/LICENSE).

heatmap-palette

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