that there is no amount of different color schemes that will make a game accessible to colorblind people. The only consistent solution is to ensure that all relevant gameplay elements can be distinguished by something other than colorāpattern, shape, a symbol, an extra border, whatever. If you don't do that, I can't play your game properly.
(This rant brought to you by God of War: Ragnarok, which features color-coded circles for dangerous attacks. Red is unblockable/unparryable, yellow will stagger you if you block but is parryable. It would have been so easy to make one of these a hexagon or something but no.)
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Being able to distinguish two colors when they're next to each other is not a good accessibility test. In a video game, these colors will appear separately and often on screens with lots of other colors as well. Two colors are only sufficiently different if a player can consistently tell in isolation which one they're looking at.
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Colorblind people generally have less practice and less skill at distinguishing things by color even if they're colors we can see. Color has always been an unreliable indicator for us, so we tend to default to tracking things other ways. Even if colors are distinguishable in theory, relying on that is harder in practice.
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Fully colorblind people just don't have that broad a range of colors they can distinguish in isolation, especially in games where the brightness of the screen as a whole changes frequently. Try playing a game in full black and white and see how many different colors you can reliably tell apart.