Some way of visualising which colors in the pallette are not distinguishable

[bartaz]

Hi,

Thanks for a great tool. It was very helpful when we were doing research for color palettes for data visualisation.

One thing we still quite struggle with is making sure the palette is colour-blind friendly.

You provide the check if pallete is "colorblind-safe", but it seems to be checking only the pairs of colors that are distinguishable in normal palette. If colors are too similar in normal pallete, they are ignored in the check completely.

It would be great if there was any way you could visualize which colors in the palette are too similar to each other - as that seems to be causing a kind of "false positive" colorblind-safe check (the distinguishable colors pass, but there are some that are not-distinguishable, so they are ignored in the check).

For an edge-case example. A palette of nearly identical colors is marked as "colorblind-safe" by the tool, while obviously it's not a good palette for any kind of user:

https://gka.github.io/palettes/#/6|s|00429f,00429e,00429d,00429c,00429b,00429a|ffffe0,ff005e,93003a|0|0