About RGBlind
We believe that great design should be accessible to everyone, regardless of how they see color. RGBlind helps designers and developers create more inclusive digital experiences.
Our Mission
Color vision deficiencies affect approximately 8% of men and 0.5% of women worldwide. That's roughly 300 million people who may experience the web differently than intended.
Our mission is to bridge this gap by providing accurate, scientific, and easy-to-use tools that help designers and developers understand how their work appears to users with different types of color vision.
By making accessibility testing simple and accessible, we aim to create a more inclusive digital world where everyone can enjoy and interact with content regardless of how they see color.
Why Choose RGBlind?
Built with accuracy, privacy, and accessibility in mind
Scientific Accuracy
Based on Machado et al. 2009 research with physiologically accurate color vision simulation.
Privacy First
All processing happens locally in your browser. Your images never leave your device.
Universal Access
Free for everyone, always. Accessibility tools should be available to all.
Community Driven
Open source project built by designers and developers for the community.
The Science Behind RGBlind
Based on peer-reviewed research for accurate simulation
RGBlind uses the color vision deficiency simulation matrices developed by Machado, Oliveira, and Fernandes in their 2009 research paper "A Physiologically-based Model for Simulation of Color Vision Deficiency."
This approach provides the most accurate simulation available by modeling the actual physiological differences in color perception rather than using simplified approximations.
Open Source & Community
Built by the community, for the community
RGBlind is an open source project maintained by designers and developers who are passionate about accessibility. We believe that accessibility tools should be free and available to everyone.
Whether you're a designer checking your color palette, a developer testing your interface, or an educator teaching about accessibility, RGBlind is here to help you create more inclusive experiences.
Medical Disclaimer
RGBlind is designed for educational and design purposes only. It should not be used for medical diagnosis or as a substitute for professional medical advice. If you suspect you have a color vision deficiency, please consult with an eye care professional.