Very colorblind here. I would much rather have accessible use of color than black and white. The whole thing is like saying that the best way to accommodate whe

Very colorblind here. I would much rather have accessible use of color than black and white. The whole thing is like saying that the best way to accommodate wheelchairs is to bulldoze the world to completely level everywhere. No. Accessibility is about awareness. We use ramps, rails, elevators, and other tools to make a 3D world accessible to people who rely on wheels. Similarly, here is the one thing you need to know to use color accessibly: think in HSB (or HSL or HSV), and always vary at least two of those dimensions. I am fine if you want to use red/green for status as long as it is light red and dark green (or vice versa). Encoding information redundantly in two dimensions makes the result accessible to those who can’t see some/all difference in one of those dimensions. There. Now you can enjoy your damn purple skies and green fire trucks without worrying about me.