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Design & Creative
ColorPairLab
Free in-browser color toolkit: WCAG text contrast checker, HEX/RGB/HSL converter, palette builder and palette contrast matrix. No account needed.
✓ Source-checked profile10 sources cited
Spec sheet
Starting price
Free
- Free plan
- Available
- Free trial
- Not listed
- Status
- Source checked 10 Nov 2026
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Claim this listingFindThatSoftware verdictEditorial ruling
Shortlist it if you are a designer, developer or founder in India who wants a quick, no-signup way to check whether text and background colors meet WCAG contrast thresholds, or to test a small brand palette pair by pair. The palette matrix and the 'find a passing color' helper are the useful parts; in our test the helper suggested a slightly darker gray that clears the normal-text threshold.
Read the full verdict
Before relying on it, note that nobody is named behind the site, the domain is only days old, and there is no stated roadmap, so treat it as a handy utility rather than something your team depends on. It checks only opaque text colors, so semi-transparent overlays, borders and focus states still need checking in the real interface. Versus well known free checkers like WebAIM's, you gain the palette matrix and local exports but give up a long track record and a known publisher.
FindThatSoftware has source-checked this listing and keeps 10 public sources visible for buyer verification.
In short
ColorPairLab is listed under Design & Creative, reviewed for Indian buyers. FindThatSoftware rates it best for designers and developers checking WCAG AA or AAA text contrast for specific color pairs; a poor fit for teams needing a full accessibility audit or proof of WCAG conformance.
What ColorPairLab costs in India
The rupee price a business actually pays, after the card forex markup, with GST shown both ways.
True India price
What actually changes for a buyer in India.
- Try first
- Has a free plan, so you can start without a card.
- Watch for
- The terms describe ColorPairLab as a free tool and there is no paid plan, checkout or account anywhere on the site.
More
The privacy page says advertising and analytics are disabled in this version, and that if advertising is added later the page will first explain the providers and consent settings.
Paying for more than ColorPairLab? See your whole stack's real India cost and where you could switch to save.
Audit your spendWho ColorPairLab fits
What it is, what you gain, what you give up, and who should look elsewhere.
What is ColorPairLab?
ColorPairLab is a small free website of color tools, run by an unnamed operator who lists only a support email. It offers four tools: a WCAG 2.2 text contrast checker with separate AA and AAA results for normal and large text, a HEX, RGB and HSL converter with tints, shades and related hues, a palette builder for two to eight colors, and a matrix that shows the contrast ratio of every color pair in a palette. The vendor says all calculations, palette saving and file exports (CSS tokens, JSON and an SVG color card) run in the browser, with no login, server database, analytics or AI connection. Saved palettes live only in that browser, capped at 30, so moving between devices means exporting a JSON backup. By its own methodology page it handles only opaque sRGB colors; transparency, gradients, CSS variables, wide-gamut color() and Lab inputs are not supported, and it checks text contrast only, not full WCAG conformance.
What you gain, and what you give up.
The case for
- Completely free with no account, and the vendor says colors are processed in the browser with no analytics or third-party scripts
- Palette contrast matrix shows the contrast ratio of every text and background pairing at once, and selecting a cell shows its four AA and AAA results
- Methodology page publishes the exact formulas and thresholds, and pass or fail uses the unrounded ratio so a borderline 4.48 does not round into a pass
The catch
- No named company or person behind the site, only a support email; the domain was registered on 22 October 2026
- Handles only opaque sRGB text colors by its own disclosure; no alpha, gradients, CSS variables, wide-gamut or Lab
- Saved palettes are stored only in one browser, capped at 30, with no sync or team sharing beyond a link carrying hex values
- Very new and narrow; established free alternatives cover the core contrast check with a longer track record
Best for
- Designers and developers checking WCAG AA or AAA text contrast for specific color pairs
- Small teams testing a two to eight color brand palette for readable text and background combinations
- Anyone who wants color tools that run without an account or sending colors to a server
Who should avoid it
- Teams needing a full accessibility audit or proof of WCAG conformance
- Designs that rely on transparency, gradients, wide-gamut or Lab colors
- Teams that need shared palettes synced across devices or colleagues
Compare ColorPairLab
How it stacks up on what we verified, the tools buyers weigh it against, and where it appears in our guides.
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What we verified about ColorPairLab
Read from ColorPairLab’s own pages. Each line is a finding and what it was based on, so you can check any of it yourself.
What ColorPairLab does
Features we confirmed12
- Template library
- 12 original palettes and 24 selected text pairs as starting points (about page)
- Data import export
- Palette JSON export and import, plus collection backup
- Color format converter
- Converter takes HEX, RGB, HSL or CSS names and returns all three formats
- Color palette builder
- Palette builder for 2 to 8 colors with labels, role notes and locks
- Contrast fix suggestions
- 'Find a passing color adjustment' suggests darker or lighter alternatives to hit a target ratio; observed suggesting #767676 at 4.54:1
- Css variable export
- Palette builder downloads CSS color tokens
- Dark mode
- Light or dark theme preference stored in browser (privacy page)
- Palette contrast matrix
- Matrix shows the contrast ratio of every text and background pair in a palette
- Shareable links
- Share link carries two to eight hex values (privacy page)
- Svg color card export
- Palette builder downloads an SVG color card
- Tints and shades generator
- Converter shows five tints, five shades, complement and analogous hues
- Wcag contrast checker
- Contrast checker gives AA and AAA results for normal and large text per WCAG 2.2 SC 1.4.3 and 1.4.6
What people use it for3
- Design product interfaces
- Tools and guides target text, button, link and chart colors in web interfaces (tools, guides pages)
- Design marketing creatives
- Palette builder and 12 original palettes for brand colors; blog post on reviewing a four color brand palette
- Build a website
- Guides on accessible link colors and button contrast for websites
Terms, compliance and how you buy6
- No card required
- No payment or signup anywhere on the site
- No account required
- Tools page: all four tools run in your browser without an account
- Local browser storage
- Up to 30 palettes saved only in this browser; no server database (privacy page)
- No analytics tracking
- Privacy page: no analytics service, advertising disabled, no third-party scripts
- Opaque srgb only
- Methodology: alpha, transparent, CSS variables, gradients, color() and Lab not supported
- Published methodology
- Methodology page gives luminance and contrast formulas, thresholds and rounding rule
Source trail
Pricing and free-plan claims can change. FindThatSoftware keeps source URLs visible so users can verify before buying.
- Terms of use (free tool)https://colorpairlab.online/terms/
- Homepage: free tools, no account neededhttps://colorpairlab.online/
- Color converterhttps://colorpairlab.online/tools/color-converter/
- Palette builderhttps://colorpairlab.online/tools/palette-builder/
- Palette contrast matrixhttps://colorpairlab.online/tools/palette-matrix/
- Tools indexhttps://colorpairlab.online/tools/
- WCAG contrast checkerhttps://colorpairlab.online/tools/contrast-checker/
- About pagehttps://colorpairlab.online/about/
- Methodology and limitshttps://colorpairlab.online/methodology/
- Privacy and local storagehttps://colorpairlab.online/privacy/
Verified against the sources above. How we research & rate software →
ColorPairLab questions
Does ColorPairLab give a GST invoice in India?
- Whether ColorPairLab issues an India GST invoice is not verified yet. Foreign-billed tools usually don't, in which case a registered business reclaims GST via reverse charge; confirm the vendor's billing before you buy.
Is ColorPairLab good for Indian small businesses?
- It suits designers and developers checking WCAG AA or AAA text contrast for specific color pairs. It bills in a foreign currency, so expect the card forex markup on every charge. It is not the right pick for teams needing a full accessibility audit or proof of WCAG conformance.
Does ColorPairLab have a free plan?
- ColorPairLab lists a free plan, but check the official pricing page for current usage limits before choosing it.
What users say
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