Which contrast ratio do I need to pass WCAG AA?
Normal text requires a 4.5:1 ratio; large text (18pt+ or 14pt bold) requires 3:1. The WCAG Color Contrast checker shows both thresholds and your pass/fail status instantly.
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Check color contrast ratios for WCAG compliance, simulate color blindness, and calculate aspect ratios — free design helpers that run entirely in your browser.
3 Tools in dieser Kategorie
← StartseiteAccessible and well-proportioned visuals start with the right numbers. This collection groups the TeaFun tools that designers, developers, and content creators use to check color accessibility, simulate vision conditions, and lock in correct proportions.
Prüfe Kontrastverhältnisse, AA-/AAA-Konformität, generiere Palettenvarianten und exportiere CSS- oder Tailwind-v4-Farb-Tokens lokal.
Testen Sie Ihr Farbsehen mit Ishihara-Tafeln, die speziell für Gamer optimiert wurden.
Seitenverhaeltnisse sofort berechnen. Masse konvertieren, fehlende Seiten berechnen und Bildgroessen fuer Social Media 2025/2026 nachschlagen.
Normal text requires a 4.5:1 ratio; large text (18pt+ or 14pt bold) requires 3:1. The WCAG Color Contrast checker shows both thresholds and your pass/fail status instantly.
It applies standard daltonisation matrices to the input colors to approximate how they appear with different types of color vision deficiency — all computed locally in your browser.