Generate ready-made foreground/background pairs in your brand hue that genuinely measure AA or AAA. Backgrounds step from light to dark while each text color is fitted until the ratio passes — every pair is previewed as real text with its measured ratio.
Settings
Generated locally in your browser — your settings and results never leave this page.
Compliance as raw material
There are two economies of accessible color: audit-and-fix (design freely, check, repair, repeat) and generate-compliant (start from pairs that already pass). The second is drastically cheaper wherever it applies — badges, chips, panels, callouts, calendar systems — and this generator is its supply line: foreground/background duos in your brand hue, fitted by iteration until each measures at or above your chosen target, delivered with the receipts.
How pairs are fitted
Backgrounds ladder from light to dark through your hue at restrained chroma; each receives a same-family foreground pushed along the lightness axis until the measured WCAG ratio clears AA or AAA. Where a hue’s gamut cannot deliver the target at any tasteful chroma — saturated brights asked for 7:1 — the fitter concedes to near-black/near-white and the warning says so. Every ratio shown is computed from the final colors, not estimated from intent.
A pair system in practice
Generated pairs slot directly into the commonest UI pattern there is: colored container, readable label. Four pairs cover a status system (info/success/warning/danger backgrounds with their inks); six cover a calendar’s categories; the AAA setting hardens any of them for dense small text. Because every pair shares the hue family, the composite UI reads as designed rather than assembled — the usual cost of compliance-first workflows, avoided.
Naming and neighbors
Ship the pairs under role names (--chip-info-bg/--chip-info-fg) so future retuning is a value edit, not a refactor. When a specific pre-existing color must anchor one side, the finder tools (Accessible Text Color, Accessible Background Color) fit around a fixed point; when whole-palette relationships matter, the Contrast Matrix maps them. This generator owns the green-field case: nothing fixed yet, compliance wanted now.
What target levels cost
The same blue hue fitted to each target shows what stricter ratios demand from a palette:
| Target | Example pair | Measured | Feel |
|---|---|---|---|
| 3:1 (large text) | white on #4a7ec2 | 3.4:1 | bright, brand-forward |
| 4.5:1 (AA) | white on #2d64a8 | 5.2:1 | confident mid-depth |
| 7:1 (AAA) | white on #1c4576 | 8.1:1 | deep, editorial |
Each step up the ladder pushes the background roughly one lightness band away from the text color — visible above as the blue deepening. That cost is fixed by arithmetic, not by taste; the design freedom lies in choosing which components pay it. Body-text surfaces buy AAA; badges and large labels can spend less.
How to use the Accessible Color Pair Generator
- Pick the hue you want pairs in and the target level.
- Set how many pairs to generate.
- Each pair renders as live sample text with its measured ratio.
- Copy the list or CSS variables.
Frequently asked questions
What does this generator produce, exactly?
Ready-to-use foreground/background duos in your chosen hue family, each fitted until the measured ratio clears your AA or AAA target – backgrounds stepping from light to dark with matched inks. Not suggestions to verify later: measured pairs, ratios printed.
How is this different from checking pairs myself in a contrast checker?
Direction: a checker verifies pairs you invent (and reject, repeatedly); this inverts the loop by generating only pairs that already pass. For "give me a compliant colored panel with readable text in brand blue", generation beats trial-and-error by many iterations.
Why do the darker backgrounds get light text and vice versa?
The fitter pushes the foreground toward whichever pole has contrast headroom – light grounds get near-black same-hue inks, dark grounds near-white ones. Mid-toned backgrounds are where it must reach for pure black/white and warns you, because mid-tones are contrast dead zones.
Can I use the pairs for things other than text panels?
Anywhere a fg/bg contract exists: badges, tags, code annotations, calendar events, toast notifications, chart callouts. The AA pairs carry any text size; the AAA ones survive dense small type.
Do all the pairs share the exact same hue?
They orbit your seed hue with restrained chroma drift – enough family resemblance to read as one system, enough variation that four panels side by side do not look like a gradient accident.
What happens at AAA with very saturated seeds?
7:1 plus high chroma is often impossible inside sRGB – chroma yields first (the generator keeps lightness fitting until the ratio passes, trimming vividness as needed) and the warning notes when black/white had to step in. Physics, disclosed.
How should I name these pairs in my tokens?
By role and emphasis, not appearance: –panel-info-bg/–panel-info-fg beats –light-blue/–dark-blue. The generated CSS uses neutral pair-N names expecting your rename – color values change, roles endure.
Fix text that fails contrast
A text colour that meets WCAG on your background, chosen rather than guessed.
- WCAG Contrast CheckerMeasure what the current pairing actually scores.
- Accessible Text Color GeneratorGet a text colour that passes on that background.
- Accessible Color Pair Generator you are hereFind further pairings that hold up across the design.
