Coblis colour-blind simulator (free, in-browser)
The one I use for all my audits. Upload a screenshot, toggle deutan/protan/tritan.
Personal experience, not medical advice.
Colour vision
Open clubDeutan, protan, tritan and monochromat perspectives in a colour-coded world.
8% of men, 0.5% of women2,850 members
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This club is health-adjacent, so membership here can never be made public. You'll still be counted, and you can post under your handle.