Designing For (and With) Color Blindness
Aaron Tenbuuren

Two other critical issues worth mentioning for designers to understand: 1) There is not one kind of color deficit vision (colorblindness). I list them all out in an appendix chapter you can read for free here: and 2) I have no clinical data but have found hints through usability testing that color deficit is totally the right word. It’s not a quantum state of colorblind or not, but I have regularly encountered people who clearly have some color vision, but which do not react to prominence of some colors as strongly. So, I tend to think the total rates may be higher than conventionally understood.

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