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Instantly check contrast ratio for color accessibility. WCAG contrast checker with fix suggestions and APCA algorithm support. 🎯 WCAG Contrast Checker is a color accessibility tool that scans your entire page for contrast issues in one click. Open the Side Panel, and instantly see every text element that fails WCAG compliance — no manual testing required. Whether you need to verify WCAG 2.1 contrast compliance or test with the modern APCA algorithm, this contrast checker has you covered. The aa contrast checker and aaa contrast checker results appear immediately for all text on the page. 1️⃣ One-Click Page Scan Click the extension icon to open the Side Panel. The accessibility scanner automatically detects all visible text elements, extracts their colors, and calculates contrast ratios. No need to test elements one by one — see the full picture instantly. 2️⃣ Smart Grouping Elements with identical text color and background color are grouped together, reducing visual clutter. Each group shows a sample text preview, the color combination, and CSS selector for quick identification. 3️⃣ WCAG Compliance Testing Get instant results for both AA and AAA accessibility levels: • Normal text (4.5:1 for AA, 7:1 for AAA) • Large text (3:1 for AA, 4.5:1 for AAA) • Filter by pass/fail status to focus on issues 4️⃣ APCA Algorithm Support This APCA contrast checker supports the new perceptual contrast algorithm used in WCAG 3.0 draft. Test your accessible colors with both traditional contrast ratio and modern APCA scoring. 5️⃣ Fix Suggestions Unlike other contrast checkers that only show pass/fail, this color accessibility checker suggests the nearest passing color. Click any failing element to see fix recommendations that preserve your original hue. Apply fixes instantly or copy CSS to clipboard. 6️⃣ Element Highlighting Click any result in the Side Panel to scroll the page and highlight that element with a visual indicator. Easily locate the exact elements that need attention. ➤ Click the extension icon to open Side Panel ➤ Page is automatically scanned for all text elements ➤ View grouped results with contrast ratios ➤ Filter by AA/AAA level, pass/fail status, or text size ➤ Click any result to highlight element on page ➤ See fix suggestions and apply with one click The web accessibility checker displays an overall accessibility score based on visual weight — larger text and more content carry more weight in the calculation. This helps you prioritize fixes that impact users most. The contrast ratio calculator provides a weighted score from 0-100 based on: ▸ Pass/fail status of each text element ▸ Visual weight (font size × text length) ▸ Total coverage of accessible vs inaccessible text This score gives you a quick overview of your page's wcag compliance status. 📋 Who Is This For? This accessibility contrast checker is designed for: Whether you work with design systems, component libraries, or production websites, this wcag contrast checker integrates seamlessly into your workflow. Unlike complex accessibility tools like WAVE or axe, this color contrast checker focuses on doing one thing well: finding and fixing contrast issues across your entire page. What sets us apart: ▸ Full page scan — not element-by-element testing ▸ Smart grouping — reduces noise, shows what matters ▸ APCA algorithm support — ready for WCAG 3.0 ▸ Fix suggestions — not just pass/fail, but actionable fixes ▸ One-click apply — fix color contrast issues instantly ▸ Weighted scoring — prioritize by visual impact The contrast ratio calculator uses the official WCAG 2.1 formula based on relative luminance: - Luminance calculator computes L values for each color - Contrast ratio = (L1 + 0.05) / (L2 + 0.05) - Results range from 1:1 to 21:1 For APCA, we use the SAPC algorithm that provides more accurate perceptual contrast values, especially for dark mode interfaces and colored text. Q: What is a color contrast checker? A: A contrast checker is an accessibility tool that measures the difference in luminance between text and background colors. Higher contrast ratio means better readability for users with visual impairments. Q: What contrast ratio is required for WCAG compliance? A: For WCAG 2.1 AA level, normal text needs 4.5:1 and large text needs 3:1. AAA level requires 7:1 and 4.5:1 respectively. This WCAG contrast checker tests all these standards automatically. Q: What is APCA? A: APCA (Accessible Perceptual Contrast Algorithm) is a new contrast calculation method being developed for WCAG 3.0. It provides more accurate results than the current wcag color contrast formula, especially for dark backgrounds and colored text. Q: How is this different from other tools? A: Most tools require manual element selection or show overwhelming full-page reports. This colour contrast checker provides smart grouping, actionable fix suggestions, and one-click fixes — focusing on efficiency. Having issues with the WCAG contrast checker? Found a bug in the color accessibility tool? We would love to hear from you. Use the support tab in Chrome Web Store to reach us. Start checking color contrast today with this accessibility contrast checker. Scan your entire page, find issues instantly, and fix color contrast problems with one click.
AccessCheck — Website Accessibility Checker, WCAG & ADA Audit
Run a WCAG and ADA accessibility audit. Check color contrast, alt text, headings, ARIA and 50+ website issues. Run a one-click WCAG and ADA accessibility audit on any web page. This accessibility checker tests color contrast, alt text, heading structure, ARIA labels, keyboard navigation and 50+ other website accessibility issues — and explains every single one in plain English, not technical WCAG codes. - Color contrast ratio for text, buttons, links, and UI elements - Missing, empty, or redundant alt text on images and icons - Heading structure and hierarchy (H1 through H6 order) - Form labels, input associations, and required field indicators - ARIA labels, roles, states, and properties - Keyboard navigation, tab order, and focus indicators - Link text clarity, descriptiveness, and "click here" anti-patterns - Language attributes and document structure - Skip navigation links and bypass blocks - Table headers, captions, and data cell associations - Interactive element focus order and visibility - Landmark regions, page structure, and HTML5 sectioning - Iframe titles, button names, and link names - Color-only information cues and meaningful contrast - And 40+ additional WCAG 2.1 and WCAG 2.2 success criteria WHO IS ACCESSCHECK FOR - Small business owners ensuring their site meets ADA website compliance requirements - Marketers and content creators checking accessibility before publishing - E-commerce store owners protecting against ADA lawsuits and demand letters - Web designers validating color contrast and readability for new designs - Bloggers making their content accessible to readers using assistive technology - Agency teams running quick website accessibility audits for clients - QA engineers needing a fast accessibility testing tool inside the browser - Educators, nonprofits, and government teams meeting Section 508 requirements - Anyone who wants to understand website accessibility without reading WCAG documentation 1. Click the AccessCheck icon on any web page 2. View results in the side panel — organized by category (Images, Forms, Navigation, Color, Structure) 3. Read plain-English descriptions of each accessibility violation (no technical WCAG jargon) 4. Follow step-by-step fix instructions with optional code snippets 5. Track your accessibility score over time with built-in scan history 6. Export a professional accessibility report as PDF for stakeholders (Pro) Instant Results: One-click accessibility audit directly in your browser. No waiting, no external servers, no command line. No Server, No Signup, No Tracking: 100% client-side scanning. Your page data never leaves your browser. This website accessibility checker works entirely offline and respects your privacy. Visual Highlights: See exactly where accessibility issues appear on the page with colored overlays — no more guessing which element triggered the violation. Letter Grade: Get an A-to-F accessibility score at a glance to understand your overall WCAG compliance level. Scan History: Track how your website accessibility improves over time with historical score tracking and trend sparklines. PDF Reports: Export professional accessibility audit reports for clients, stakeholders, and legal records (Pro). Batch Scanning: Audit multiple pages or an entire sitemap in one run to check your whole website for accessibility violations (Pro). Developer Mode: Optionally show WCAG success criteria codes alongside plain-English explanations for accessibility specialists and developers. - WCAG 2.0, WCAG 2.1, and WCAG 2.2 (Level A, AA, and AAA) - ADA (Americans with Disabilities Act) Title III compliance indicators - Section 508 of the Rehabilitation Act - EN 301 549 and the European Accessibility Act (EAA 2025) - AODA (Accessibility for Ontarians with Disabilities Act) Color contrast ratio checker for text and backgrounds Alt text checker for images, icons, and decorative graphics Heading structure and hierarchy validator Form label and input association checker ARIA attribute validation and screen reader compatibility test Keyboard navigation and focus order testing Link text quality and descriptiveness analysis Skip navigation and landmark region detection Table structure and header association review Language attribute and document structure audit Interactive element accessibility evaluation Focus indicator visibility checker Button, link, and iframe name validator Duplicate ID and unique landmark detector AccessCheck runs 100% in your browser. No page data is sent to external servers, no browsing activity is tracked, and no account is needed. This accessibility scanner is lightweight and performs the full website accessibility audit in seconds without slowing down your browser. Powered by the open-source axe-core engine trusted by accessibility teams worldwide.
WCAG Contrast Checker
Use WCAG Contrast Checker to easily check color contrast ratio and for online accessibility testing with WCAG contrast standards. 🌈 WCAG Contrast Checker helps you instantly verify color contrast ratio on any webpage and ensure full compliance with accessibility standards. Whether you are a designer, developer, or content creator, this extension will make your workflow smoother and more professional. With this easy-to-use wcag color contrast checker extension, you can analyze color pairs directly in Chrome and see if they meet WCAG 2.2 AA or AAA requirements. No need for external tools — everything you need is right in your browser. ⭐ What makes this tool unique 1️⃣ Instant color contrast analysis for text, backgrounds, and UI components. 2️⃣ Fully compatible with wcag accessibility contrast checker standards. 3️⃣ One-click access via the toolbar icon — perfect for quick audits. 4️⃣ Saves time for compliance validation across projects of any size and complexity. 📍 How to Use Click on the WCAG Contrast Checker icon in your Chrome toolbar. Hover over any text or element you want to analyze. Instantly view the ratio and compliance status on any webpage. Adjust colors and recheck in real time with web accessibility checker. 📊 Core Features WCAG Contrast Checker chrome extension provides automatic color detection and background-foreground ratio calculation, supports both RGB, HEX, and HSL formats for flexible input, and includes a live preview mode for testing new color combinations. ✅It clearly displays pass/fail status according to wcag aa contrast checker rules and works seamlessly for all websites, adapting perfectly to modern responsive layouts, ensuring smooth and consistent accessibility testing experience. 🧭 Practical Use Cases Web designers improving readability of UI components using wcag colour contrast checker tools. Developers ensuring accessible themes and color palettes with an accessibility color checker. Teams conducting online accessibility testing and audits for organizations of any size. Educators teaching inclusive design principles and using a colour contrast analyser. Anyone who wants to make their websites easier to use and friendlier for all users. 🎯 Why You’ll Love It No installation of any external software is required to use. Performs pass/fail tests using color contrast checker wcag. Ensures compliance with wcag 2.2 color contrast checker. 💬 Frequently Asked Questions ❓ What is wcag color contrast checker chrome extension? 💡It’s a color contrast analyzer that detects non-conformities with the standard on any webpage. ❓ Does it support WCAG 2.2 standards? 💡 Yes, it functions as a wcag 2.2 contrast checker with updated thresholds and recommendations. ❓ Is it suitable for accessibility audits? 💡 Yes — it works as a full-featured colour contrast analyser for compliance testing. ❓ Does it work offline? 💡 Yes, you can use it locally without an internet connection. ❓ Can I test custom colors? 💡 Absolutely. Enter any color pair manually or select from the page using the eyedropper tool. 📈 Benefits for Teams - Simplifies WCAG accessibility testing for all web projects. - Enhances overall UI/UX design using wcag contrast checker. - Helps pass accessibility audits and avoid compliance issues. - Boosts your site’s SEO by improving usability and inclusivity. - Supports both light and dark modes for better testing flexibility. 🌐 Why Accessibility Matters Accessible design benefits everyone — not just people with vision impairments. By using a wcag contrast checker extension, you make your site easier to read, navigate, and enjoy for all audiences. 🚀 Integrations and Compatibility 🔸 Works with webaim contrast checker tools and integrates with developer workflows. 🔸 Supports wcag contrast ratio checker for text, icons, buttons, and other UI elements. 🔸 Ideal companion for designers who truly value precision and accessibility quality. From simple landing pages to complex web apps, this wcag contrast checker empowers you to design responsibly and inclusively while maintaining visual harmony across all elements. 📦 In Summary The wcag contrast checker is your all-in-one tool for fast, accurate, and effortless color accessibility testing. It’s built to help you meet global accessibility standards with confidence. Make your websites compliant, user-friendly, and visually balanced today. 📍Add WCAG Contrast Checker to Chrome and start improving accessibility now!
PDF Opener
Open PDF files directly in new tabs without saving PDF files. Good for reading pdf files on sites with WCAG accessibility standards. 解決無障礙網站要下載PDF檔，才能點開的麻煩，讓您點開PDF，自動開新分頁閱讀。 PDF Opener: Open PDF files directly in new tabs without saving PDF files. Good for reading pdf files on sites with WCAG accessibility standards. #accessibility #pdf #opener
TheWCAG Accessibility Evaluation Tool
Evaluate web accessibility within your browser using WCAG guidelines. TheWCAG Accessibility Evaluation Tool is a comprehensive browser extension that helps developers, designers, and QA teams evaluate web accessibility directly within their browser using WCAG 2.2 guidelines. Comprehensive Accessibility Evaluation - Automatically scans web pages for accessibility issues - Detects errors, alerts, and potential problems - Evaluates WCAG 2.2 compliance across all three levels (A, AA, AAA) - Real-time analysis with instant results Detailed Reporting - Visual sidebar panel with organized issue categories - Color-coded severity indicators (Errors, Alerts, Features) - Accessibility Impact Metric (AIM) score out of 10 - Export reports in JSON, CSV, HTML, and EARL formats WCAG 2.2 Compliance Checklist - Complete database of all 87 WCAG 2.2 success criteria - Filter by compliance level (A, AA, AAA) - Track passed, failed, and manual testing requirements - Visual progress indicators with percentage compliance Quick Fix Suggestions - Contextual code snippets for common issues - Step-by-step remediation guidance - Copy-paste ready solutions - Links to official WCAG documentation Screen Reader Preview - Simulates how screen readers interpret your page - Accessibility tree visualization - Multiple output modes (verbose, concise, navigation) - Helps understand assistive technology experience Detailed Issue Analysis - Organized by category: Errors, Alerts, Features, Structure, ARIA - Click any issue to see detailed documentation - Element highlighting and DevTools integration - Reference panel with WCAG guidelines Contrast Checker - Real-time color contrast analysis - WCAG AA and AAA compliance checking - Interactive color picker - Foreground/background ratio calculator Focus Order Visualization - Shows keyboard navigation sequence - Identifies focus order issues - Visual indicators for all focusable elements - Helps ensure logical tab order Page Structure Analysis - Heading hierarchy visualization - Landmark detection (main, nav, header, footer, etc.) - Semantic HTML structure review - Missing structure warnings Customizable Settings - Ignore patterns for known false positives - Custom accessibility rules - Site-specific profiles - Import/export settings Perfect For: - Web developers building accessible websites - QA teams testing for accessibility compliance - Designers ensuring inclusive design - Content creators making accessible content - Organizations meeting WCAG requirements Accessibility is not optional—it's a legal requirement in many jurisdictions and a moral imperative. TheWCAG makes it easy to identify and fix accessibility issues before they reach users. With comprehensive WCAG 2.2 support, detailed reporting, and actionable fixes, TheWCAG is the complete accessibility evaluation solution. Privacy & Security: - All analysis happens locally in your browser - No data sent to external servers - No tracking or analytics - Your browsing data stays private Start building more accessible web experiences today with TheWCAG Accessibility Evaluation Tool.
