Developer Tools

Color Blindness Simulator — Accessibility Preview

Preview approximate color-vision deficiency filters on your palette

How to Use This Tool

  1. Pick colors to evaluate.
  2. Read suggested CSS filter approximation.
  3. Verify contrast ratios with WCAG tools before shipping.

About This Tool

Rankify color blindness simulator shows CSS filter approximations for protanopia simulation — use alongside contrast checkers for accessibility review.

Everything runs in your browser — inputs stay on your device and are not uploaded to a server.

Common use cases

  • •Inspect HTTP headers and user-agent strings
  • •Analyze email headers for phishing investigation
  • •Generate strong passwords for staging environments

Why use Rankify for ?

  • Free to use with no signup.
  • Client-side processing for privacy.
  • Instant results with copy-friendly output.
  • Works on desktop and mobile browsers.

Important notes & limitations

  • Browser filters approximate vision deficiency — not a medical simulation.

Frequently Asked Questions

Yes. Rankify offers this color blindness simulator at no cost with no account required. Results load in real time.

We do not permanently store your queries on our servers. Some tools run entirely in your browser; others fetch public data for the request only.

Yes. Open the page in any modern phone or tablet browser. Results work on Wi‑Fi and mobile data.

Next step for your check

Continue with css color generator on Rankify.

CSS Color Generator

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