Vivico Contrast

Vivico Contrast is a WCAG 2.1 contrast checker that lives right in your menu bar — pick two colors, see instant pass/fail results for every accessibility level, no browser tab required.

STOP GUESSING AT CONTRAST Type a hex code, drag RGB sliders, or use the built-in eyedropper to sample any color on your screen. Vivico Contrast calculates the exact contrast ratio using the same math the WCAG 2.1 spec defines, and shows you at a glance whether it passes AA and AAA for normal text, large text, and UI components.

SEE WHAT COLORBLIND USERS SEE Expand the Color Blindness panel to simulate deuteranopia, protanopia, and tritanopia in real time. Every color pair you test is shown exactly as someone with that condition would see it, along with the simulated contrast ratio — so you catch problems before they ship, not after a user reports them.

BUILT FOR YOUR WORKFLOW • Save your go-to color pairs and restore them with one click • Set default foreground/background colors and launch-at-login in Preferences • Copy any hex value to your clipboard instantly • Fully keyboard-navigable — tab between fields, hit return to confirm

PRIVACY BY DESIGN Vivico Contrast does all of its math locally. No network calls, no analytics, no accounts. Your colors never leave your Mac.

Whether you're a frontend developer double-checking a design system, or a UI/UX designer making sure your palette holds up for every user, Vivico Contrast keeps accessibility one click away — right where you already work.

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