Local caption color QA
Caption Contrast Checker
Check selected caption text, outline, and box colors for WCAG-style contrast ratios before burning captions into video.
Caption contrast workspace
Pick caption colors and check practical contrast ratios.
Paste captions to preview a styled
subtitle.
Caption text on caption box
Passes the 4.5:1 normal-text contrast target.
21:1
PASS
Caption text on dark video preview
Passes the 4.5:1 normal-text contrast target.
18.88:1
PASS
Outline against caption text
Passes the 4.5:1 normal-text contrast target.
21:1
PASS