ISHI Q — Colorblind Filter & Vision Assist

Recolor any website for your color vision. Tuned to your type, severity & strength. 100% on-device — no data collected.

See color your way. ISHI Q — Colorblind Filter & Vision Assist recolors every website to suit your color vision, so colors that used to blend together pull apart. Unlike simulators that just show designers what colorblindness looks like, ISHI Q works FOR you — it corrects real pages as you browse. WHY ISHI Q • Tuned to you — set your vision type (protan, deutan, tritan, or monochromacy), severity, and correction strength. • Clinically grounded — uses the Machado et al. (2009) color-vision model, applied in linear light for accurate results. • Truly private — everything runs in your browser. No account, no tracking, no data collected. Ever. • Per-site control — switch the filter off on color-critical sites (photo editing, proofing) in one click. • Works everywhere — applies to every tab and frame, the moment a page loads. PART OF THE ISHI Q TOOLKIT Pair it with the free ISHI Q web app (ishicue.netlify.app) to screen your color vision, correct individual images with the Vision Lens, and build colorblind-safe palettes. HOW TO USE 1. Pin the extension and click its icon. 2. Set your vision type, severity, and strength — or run Calibrate in the ISHI Q app and copy your profile across. 3. Browse. Every page is recolored for your eyes. ISHI Q adjusts how colors look; it is an accessibility aid, not a medical device. If your color vision has changed recently, please see an eye-care professional. Open source — inspect exactly what it does: github.com/yulebesorry/ishi-cue