ColorVision
Free online colour blind tests
What it does
Take our free, professional-grade colour blind tests online. Ishihara, Farnsworth 100 Hue, and D-15 Dichotomous — no account required, completely private.
Take a free color blind test online. Explore red-green screening, hue-order activities, a color blind test for kids, and practical color-vision tools.
Explore free, browser-based color vision screens: Ishihara-style plates, hue-order activities, and a color blind test for kids. No account required. A 24-plate, Ishihara-style educational screen for exploring red-green colour contrasts. Arrange 40 digital colour caps in hue order and explore your error plot. A fast hue-order activity that highlights major jumps in a 15-cap sequence. A child-friendly tracing activity with no number-reading required. Identify original symbols using red-green and blue-yellow contrast pairs. Upload any image and see how it looks with protanopia, deuteranopia, tritanopia, or achromatopsia. Test any colour pair for WCAG AA/AAA compliance, with CVD simulation for…from colorsighttest.com
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Life & fun · 10d ago · louisabraham.github.io
- SA
Hello HN! I found that picking out plausible but diverse skin tones for my digital art and game development projects was kind of difficult, and I got curious about if there was a way to define a color space that made it easy. I've built a color picker and procedural generation algorithm based on the space as well as a bunch of other fun js features and demos throughout the page that use the equations. If you find it interesting, I have lots of explanations of how I built it and what properties the space has. The methodology might be a bit shaky, but hopefully the result is as helpful for…
Life & fun · Aug 2026 · toneyalexander.github.io
I trained a 125M-parameter transformer to autocomplete piano performances in real time (~108 notes/sec on an iPhone 15). The idea is basically GitHub Copilot or Tabnine, except instead of prompting it with code, you prompt it by playing a few notes on a MIDI piano. The model then continues what you played, entirely on-device. The app is free if anyone wants to try it. Happy to answer questions about the model, training, Core ML, or the many things that didn't work.
AI · 16d ago · simedw.com