Rank Your Colour Pairs by Which One Fails First — Free
Paste the measured ratios; the sheet ranks the pairs by which fails hardest.
Free tier — complete on its own
- Any number of pairs ranked
- Ratio and size scored with inputs shown
- Copy the sheet as text
- Stateful link to any result
running the sample…
first-load · sample values are illustrative, not verified facts
Everything you paste stays in this browser tab. Nothing is uploaded, there is no account, and no request leaves the page to generate the result; clearing site data removes anything saved locally.
Keep the contrast pair instead of rebuilding it
$4 one-time · one-time · Your purchase is tied to this device with care — no account needed. Checkout is secure, and your extras are always ready here whenever you return.
- Printable sheet with the failing pairs boxed for a design review — estimate: 16 minutes saved per audit, basis: 5 pairs re-tabulated at ~3.2 minutes each
- Saved local history across audits — estimate: 11 minutes saved per audit, basis: re-entering 5 pairs at ~2.2 minutes each
$4 one-time
Payment links are filled in after Stripe setup; until then the free tier is the whole tool.