Vesper Colors

WCAG color contrast checker

Only for iPhone

Free

iPhone

Check any color pair against WCAG 2.2 AA and AAA standards instantly. Free, no sign-up required. Vesper Colors is a free WCAG 2.2 color contrast checker for designers, developers, and accessibility practitioners. Check any color pair instantly, build palettes, and explore full color profiles - all in one app. Check Enter any two colors and instantly see their contrast ratio with AA and AAA pass/fail results for both normal and large text. A live preview shows exactly how your text will look at real sizes. Tap any color to open the full-featured HSV color picker. Preview See your color pair applied across real UI components - navigation, hero section, reversed layout, form inputs, footer, data tables, and charts. Switch between normal and color blind simulation modes to check accessibility across vision types. Palette Build multi-color palettes with full-screen color bars. Add, edit, reorder, and delete colors. Tap any bar for quick actions: copy hex, check WCAG contrast, view shades, or jump to the full color profile. Share your palette with a single tap. Profile Explore any color in depth. See HEX, RGB, HSL, and CMYK values with one-tap copy. Check contrast against white and black. Simulate how the color appears to users with Protanopia, Deuteranopia, Tritanopia, and Achromatopsia. Browse shades, tints, tones, hues, temperatures, and four color harmonies - all tappable to explore further. Vesper Colors is completely free with no subscription, no sign-up, and no ads. Part of the Vesper accessibility suite alongside Vesper Inspect and Vesper Audit.

Ratings & Reviews

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Corrected build. Includes all four tabs: Check, Preview, Palette, and Profile.

Version 1.0.1

The developer, ERNEST STEVEN TROTTER, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Not Collected

    The developer does not collect any data from this app.

    Privacy practices may vary, for example, based on the features you use or your age. Learn More

    Accessibility

    The developer has not yet indicated which accessibility features this app supports. Learn More

    Information

    Seller
    • ERNEST STEVEN TROTTER
    Size
    • 34.3 MB
    Category
    • Graphics & Design
    Compatibility
    Requires iOS 15.1 or later.
    • iPhone
      Requires iOS 15.1 or later.
    • iPod touch
      Requires iOS 15.1 or later.
    Languages
    • English
    Age Rating
    4+
    Copyright
    • © 2026 Vesper Technologies LLC
  • Developer Website
  • Privacy Policy

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