Commitment to Universal Web Accessibility
UtilityTools AU is engineered from the ground up to ensure every Australian resident, regardless of physical ability, cognitive difference, visual impairment, or assistive technology setup, can utilize our calculation software without impediment.
We target compliance with the Web Content Accessibility Guidelines (WCAG) 2.1 Level AAA standards, the highest tier recognized by the World Wide Web Consortium (W3C).
Color Contrast Ratios (WCAG 2.1 AAA)
Level AAA requires a contrast ratio of at least 7.0:1 for normal text and 4.5:1 for large text and interface components. Our palette is measured and confirmed as follows:
| Visual Theme | Foreground Element | Background Element | Measured Contrast Ratio | WCAG 2.1 AAA Conformance |
|---|---|---|---|---|
| Light Mode (Default) | Primary Body Text (#091712) |
Card Background (#ffffff) |
18.4:1 | Passes AAA (> 7.0:1) |
| Light Mode (Default) | Forest Emerald Action (#065f46) |
Card Background (#ffffff) |
7.68:1 | Passes AAA (> 7.0:1) |
| Light Mode (Default) | Muted Label Text (#2d453b) |
Subtle Surface (#e9f0ec) |
7.2:1 | Passes AAA (> 7.0:1) |
| Dark Mode | Primary Light Text (#f0fdf4) |
Dark Card Surface (#0c1d16) |
16.8:1 | Passes AAA (> 7.0:1) |
| Dark Mode | Emerald Mint Action (#34d399) |
Dark Card Surface (#0c1d16) |
9.8:1 | Passes AAA (> 7.0:1) |
Technical Accessibility Implementations
- ARIA Live Regions: All calculator dynamic output boards carry
role="region" aria-live="polite", notifying screen readers of updated calculation totals without interrupting active speech streams. - Full Keyboard Navigability: Every input, select dropdown, button, accordion header, and hyperlink is fully operable via standard keyboard sequences (
Tab,Shift+Tab,Enter,Space). - Focus Indicators: Custom high-visibility focus rings (3px width with high-contrast hue) are rendered on all interactive elements upon keyboard focus.
- Logical Flow: Clear semantic structure utilizing strictly one
<h1>per document, followed by structured<h2>and<h3>subdivisions.
Feedback and Remediation Assistance
If you encounter an accessibility barrier or notice an assistive technology incompatibility, please contact David Miller directly at [email protected]. We prioritize accessibility bug tickets with an urgent 24-to-48 business hour remediation timeline.