More Colorblind friendly colours (or separate colourblind page?)

[emmahodcroft]

From this tweet: https://twitter.com/RScheppingen/status/1224652384372215809

Here's how nCoV looks with the Chrome Extension Colorblinding, set to Red-Blind (but Green-blind looks similar, and I understand these two are the most common):

It's super hard to get colours people can see, even with normal vision. But I wanted to put this up as an issue, in case there are any good suggestions for how to make this better for colour-blind people? As we are getting more and more traffic, this is definitely going to be affecting people.

[emmahodcroft]

I'm chatting with Roan to get his thoughts on what might help here. Estimates are ~5% of the population suffer some kind of colourblindness (~8% of men), so I think if there's something not-too-difficult we can maybe incorporate, it might be worth trying out.

[tolot27]

At http://colorbrewer2.org you can choose different palettes with different number of categorial/quantitative colorblind safe colors.

[emmahodcroft]

Thanks @tolot27 ! This is probably a good starting place for some spectrums :)