FREE ACCESSIBILITY & COLOR TOOLS
FOR CLEARER, MORE INCLUSIVE DESIGN
Verify WCAG color contrast ratios, convert color formats (HEX, RGB, HSL), pick colors, generate palettes, and simulate color blindness.
A Typical Accessibility & Color Tools Workflow
Select Colors
Input text foreground and background color codes (HEX, RGB, or HSL).
Check Contrast Ratio
Calculate contrast scores against WCAG 2.1 Level AA (4.5:1) and AAA (7:1) guidelines.
Simulate Vision
Test how your chosen color combinations appear under common visual impairments.
Export Palette
Copy accessible color codes directly into your CSS or design system tokens.
Accessibility & Color Tools Workflow Note
These tools are designed to work together as a cohesive ecosystem. Research your keywords first, preview your metadata, validate your output, and always manually verify structural changes before applying them to a live production environment.
What Can You Do With These Accessibility & Color Tools?
Check WCAG Color Contrast
Calculate contrast ratios between text and background colors for AA / AAA compliance.
WCAG Color Contrast CheckerConvert Color Formats
Convert seamlessly between HEX, RGB, HSL, HSV, and CMYK color values.
Color ConverterPick & Sample Colors
Select custom colors, view shades, and copy precise hex/rgb codes.
Color PickerGenerate Color Palettes
Build harmonious color palettes with automatic contrast scoring.
Color Palette GeneratorSimulate Color Blindness
Preview how designs look to users with Protanopia, Deuteranopia, or Tritanopia.
Color Blindness SimulatorAll Accessibility & Color Tools
The complete collection of 5 free, browser-based tools designed for accessibility & color tools.
WCAG Color Contrast Checker
Check foreground and background color contrast against WCAG AA and AAA requirements with live ratio calculations in your browser.
Color Converter
Convert color codes instantly between HEX, RGB, HSL, HSV, HWB, and CMYK formats in your browser.
Color Picker
Select, inspect, and copy web color codes visually with synchronized HEX, RGB, and HSL controls.
Color Palette Generator
Generate harmonious, cohesive color palettes with deterministic color harmony modes, base-color anchoring, individual color locking, slider adjustments, and 1-click CSS/JSON export.
Color Blindness Simulator
Simulate how images, UI mockups, and digital graphics appear under 8 common color vision deficiency (CVD) conditions using physiologically accurate linear sRGB cone transformation matrices with side-by-side comparison and client-side PNG export.
What are Accessibility & Color Tools?
Accessibility and color tools help UI designers, frontend developers, and digital creators build inclusive, legible web experiences.
They assist with crucial WCAG 2.1 / 2.2 compliance tasks such as calculating color contrast ratios for text readability, converting color formats (HEX, RGB, HSL), generating harmonious visual palettes, and simulating color vision deficiencies.
All color calculations and vision simulations execute in real time in your web browser, helping you deliver accessible digital products efficiently.
Why Use VClick Accessibility Tools?
WCAG 2.1 / 2.2 Compliance
Instantly verify Level AA and Level AAA contrast requirements.
Vision Simulation
Ensure design legibility for color blind users before launch.
Instant Format Conversion
Convert values between HEX, RGB, HSL, and CMYK automatically.