See the World Through a Color-Corrected Lens

Free camera filter with two modes: Simulate shows designers how colorblind people see the world, Daltonize shifts colors so colorblind users can distinguish them better. Real-time processing of protanopia, deuteranopia, tritanopia, and achromatopsia.

How to Use the Colorblind Camera Filter

1
Start your camera

Click "Start Camera" and allow browser access to your webcam or phone camera.

2
Choose what you need

Select "Simulate" to see how colorblind people see, or "Enhance (Daltonize)" to make colors more distinguishable for colorblind vision.

3
Select CVD type

Pick the type of color vision deficiency: protanopia, deuteranopia, tritanopia, or achromatopsia.

4
Adjust and explore

Use the severity slider (0–100%) to control intensity. Toggle fullscreen for immersive use. Compare with side-by-side view.

Check accessibility or enhance colors for colorblind vision in real time

See the World Through a Color-Corrected Lens
0 FPS
Click "Start Camera" to begin
Severity
100%
Original
Processed
CVD Type
Mode
See what a colorblind person sees

Features

Real-time at 30 FPS Simulate mode for designers Daltonize mode for colorblind users Adjustable severity & fullscreen

Frequently Asked Questions

Who is this tool for?

Two audiences: (1) designers and developers who need to check their work for color accessibility — Simulate mode shows how colorblind users see your designs. (2) People with color blindness who want to distinguish colors better — Daltonize mode shifts colors for better visibility.

What types of color blindness are supported?

Protanopia (red-blind, 1% of males), deuteranopia (green-blind, 6% of males), tritanopia (blue-blind, rare), and achromatopsia (total color blindness, very rare). The severity slider lets you test partial deficiency too.

Can colorblind people use Daltonize mode as "color blind glasses"?

Daltonize algorithmically shifts colors that are indistinguishable to colorblind users into ranges they can perceive. It works in real time via your camera — point it at signs, maps, charts, or anything with color-coded information.

How accurate is the simulation?

The simulation uses the Machado-Oliveira-Fernandes model — the most accurate CVD simulation algorithm available in scientific literature. It is widely used in accessibility research.

Can I use this on my phone?

Yes. On mobile devices the tool uses your rear camera by default. Switch Camera button toggles between front and back cameras. Fullscreen mode works great on phones.

💡 Want us to improve this tool just for you?

We can — and it's free! Just send us a quick message with your idea. If you'd like to discuss it in detail, leave your email and we'll get back to you. You can stay anonymous.

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Who is this tool for?
♿ Accessibility Users 🏥 Healthcare Professionals
Published Updated