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Blueprint Calc

Accessibility Statement

Last updated: 2026-04-25

Blueprint Calc is committed to making our calculators usable by everyone, including people with disabilities. We target WCAG 2.2 Level AA compliance across the entire site and test against it on each release.

What we've implemented

  • Keyboard navigable: every interactive element is reachable via Tab and operable via Enter or Space.
  • Labeled inputs: every form field has a proper <label for> association; no placeholder-only labels.
  • Live results: calculator outputs use aria-live="polite" so screen readers announce each recalculation without interrupting.
  • Visible focus: every focusable element has a 2px accent-color outline with a 2px offset.
  • Skip to content: a skip link appears as the first focusable element on every page.
  • Color contrast: all body text meets WCAG AA (4.5:1) ratios; interactive UI meets WCAG AAA (7:1) where feasible.
  • Touch targets: interactive controls are at least 24×24 CSS pixels per WCAG 2.2 SC 2.5.8; primary controls are 44×44+.
  • Motion: no essential animation. Any decorative motion respects prefers-reduced-motion.
  • Semantic HTML: native <details>, <table>, <label>, <button> elements throughout — no generic div-as-button ARIA gymnastics.
  • No reliance on color alone: errors, states, and status indicators always combine icon + label + color.

Known limitations

  • The calculator requires JavaScript for interactive recalculation. With JS disabled, the page still shows a sensible default result and the static FAQ / HowTo content, but the form does not update.
  • Some third-party affiliate images (when wired at launch) may come from retailer CDNs and may not have ideal alt text. We replace or supplement those alt attributes as we find them.

Standards we target

  • WCAG 2.2 Level AA (all success criteria)
  • Section 508 (US federal) — informational-only site, not subject, but we meet the applicable technical criteria
  • European Accessibility Act (2025) — calculators are free, non-commercial tools; we target compliance voluntarily

How we test

  • Automated checks via axe-core run in CI on every pull request
  • Manual keyboard-only navigation through each calculator
  • Screen reader spot checks with VoiceOver (macOS/iOS) and NVDA (Windows)
  • Contrast verification against the computed CSS palette
  • Mobile testing at 375px width minimum

Reporting an issue

If you encounter an accessibility barrier on Blueprint Calc, please email hello@blueprintcalc.com or use our contact page. Include:

  • The page URL where you hit the problem
  • The assistive technology or input method you were using
  • What you tried to do and what happened instead

We commit to acknowledging accessibility reports within two business days and to fixing confirmed barriers in the next release — typically within 7-14 days.

Alternative formats

If you need calculator output in a format not currently supported (plain-text printout, audio description of the math, etc.), contact us and we'll do our best to provide it.