contrast — free browser tool | fatcousin | fatcousin

tools→browse every utility in one place.manifesto→why fatcousin exists — local-first, no uploads.

ready

local

// fatcousin · local process monitor

00:00:00

// session started —

// tool · contrast

// origin · —

// user agent · —

// verdict · files processed locally · verify by watching NET events below

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NET · no outbound requests · all processing local

this panel shows everything. if something looks wrong, it is wrong. that's the contract.

wcag 2.1 ratio · apca lc · live preview · pass / fail at every text size

[colors]

foreground · text

background

[preview]

12px · the quick brown fox jumps over the lazy dog

14px · the quick brown fox jumps over the lazy dog

18px · the quick brown fox jumps over the lazy dog

24px · the quick brown fox jumps over

32px · the quick brown

[result]

WCAG 2.1

15.96 : 1

legacy industry standard

APCA Lc

+8

dark text on light bg

[wcag 2.1 thresholds]

PASSAA · normal text≥ 18px regular / 14px bold≥ 4.5:1
PASSAA · large text≥ 24px regular / 19px bold≥ 3:1
PASSAAA · normal text≥ 18px regular / 14px bold≥ 7:1
PASSAAA · large text≥ 24px regular / 19px bold≥ 4.5:1
PASSnon-text · uiborders · icons · controls≥ 3:1

[apca tiers]

FAILLc 90+preferred for body text|Lc| ≥ 90
FAILLc 75minimum for body text · 14px+|Lc| ≥ 75
FAILLc 60minimum for content · 18px+|Lc| ≥ 60
FAILLc 45minimum for large text · 24px+|Lc| ≥ 45
FAILLc 30minimum for non-content / decorative|Lc| ≥ 30

[status]

>ready