Color Blindness Simulator
Explore how colors may appear to people with different types of color vision deficiency. Useful for learning about color accessibility and inclusive design.
AvailableAccessibility for everyone
Explore accessibility tools for better digital inclusion
Ciego.org brings together accessibility tools and educational resources about blindness, visual impairment, Braille, assistive technology and inclusive web design. Start with our available color blindness simulator and explore resources designed to help you understand accessibility.
Explore the tools
Accessibility tools and resources
Use available tools directly, or review the planned tools to see which resources may be added as the website develops. A tool is linked only when its corresponding PHP file is available.
Planned resources
More accessibility tools to develop
The following ideas are not presented as working tools. Each remains marked as planned until its corresponding PHP page exists.
Image Alt Text Helper
A planned tool to help authors create meaningful alternative text for informative images.
PlannedContrast Checker
A planned tool for checking foreground and background color contrast for more accessible interfaces.
PlannedBraille Translator
A planned resource for exploring text-to-Braille translation and Braille literacy.
PlannedAccessibility Checklist
A planned checklist to help website owners review common accessibility considerations.
PlannedVision Simulator
A planned educational tool for exploring selected visual effects and their implications for accessible design.
PlannedLearn about accessibility
Explore blindness and digital accessibility
Accessibility involves more than one tool or disability. These subjects provide a starting point for learning about inclusive experiences, assistive technology and accessible information.
Visual impairment and blindness
Learn about visual accessibility, low vision, blindness-related topics and ways digital content can be made easier to use.
Braille and accessible text
Explore Braille literacy, accessible text, screen-reader-friendly content and alternatives to information conveyed only visually.
Assistive technology
Understand how assistive technologies can help people access websites, applications and digital information.
Accessible web design
Discover why semantic HTML, keyboard access, readable text, clear navigation and meaningful image descriptions matter.
Color and visual design
Learn why color should not be the only way information is communicated and why contrast is important for readable interfaces.
Inclusive digital experiences
Consider different user needs when planning website content, forms, navigation and interactive features.
About Ciego.org
Ciego.org focuses on accessibility, blindness, visual impairment and assistive technology. The aim is to make useful information and practical accessibility resources easier to discover.
The website includes an available color blindness simulator and may expand its tool collection as additional features are developed. Planned tools should not be considered available until their pages are implemented.
Principles of accessible design
- Use clear headings and meaningful page structure so information is easier to navigate.
- Provide text alternatives for informative images where appropriate.
- Support keyboard navigation and visible focus indicators for interactive controls.
- Avoid relying on color alone to communicate important information.
- Consider screen readers, magnification, contrast and different ways of interacting with digital content.
Start exploring color accessibility
Try the available color blindness simulator to explore color perception and think about how color choices affect digital design.
Open Color Blindness Simulator