Contrast Checker – Sticky Notes

Check WCAG contrast between two colours. Fast pass/fail for AA/AAA, normal and large text. No permissions required.

Contrast Checker – Sticky Notes is a lightweight popup tool that quickly evaluates colour pairs against WCAG guidelines. Enter two colours and instantly see a clear pass/fail for AA and AAA, for both normal and large text. Designed for speed and clarity, it requires no special permissions and keeps your workflow distraction-free—perfect for designers, developers, and content teams who need accessible colour choices at a glance. Highlights Fast pass/fail for WCAG AA/AAA Checks both normal and large text Simple popup UI, no clutter No permissions required How it works Open the extension popup. Input two colours. Review instant pass/fail results and adjust as needed.