Cookie banner compliance is usually judged against the FADP, GDPR, or TCA. Another criterion is too often left out: digital accessibility. A banner that’s unusable by keyboard, has insufficient contrast, or doesn’t resize text correctly excludes part of your visitors — and in Switzerland, can run against the eCH-0059 standard.
eCH-0059: Switzerland’s digital accessibility standard
eCH-0059 is the Swiss e-government standard for digital accessibility. Its version 3.0 aligns with the Web Content Accessibility Guidelines (WCAG) 2.1, level AA, and serves as a reference for federal administration websites as well as a growing number of private organizations looking to make their site usable by everyone and reduce their legal exposure.
A cookie banner, as an interactive element present on every page, is a frequent friction point: poorly implemented, it can block keyboard navigation or make a site unusable for some visitors until it’s dismissed.
What we updated at biskoui
We reviewed our consent banner’s implementation to meet the following WCAG 2.1 criteria:
| WCAG criterion | Level | What this changes in practice |
|---|---|---|
| 2.4.3 Focus Order | A | Keyboard focus follows a logical and predictable order through the banner. |
| 2.4.7 Focus Visible / 2.4.11 Focus Appearance | AA | Every interactive element displays a clearly visible focus outline. |
| 1.4.3 Contrast (Minimum) | AA | Text maintains a contrast ratio of at least 4.5:1 against its background. |
| 1.4.11 Non-text Contrast | AA | Button outlines, checkboxes, and sliders maintain a 3:1 contrast ratio. |
| 2.4.1 Bypass Blocks | A | A mechanism lets users skip repeated content blocks without having to tab through them entirely. |
| 1.4.4 Resize Text | AA | Text can be enlarged up to 200% without loss of content or functionality. |
In practice, this means a keyboard-only user can now accept, reject, or customize their preferences without ever losing track of focus. A visually impaired user can enlarge the banner’s text without it becoming unreadable or hiding the action buttons. And every interactive element remains identifiable even with reduced color contrast.
Why this matters for your website
An inaccessible cookie banner isn’t just a UX issue: it’s an additional compliance point to address, particularly for websites subject to accessibility obligations (public sector, semi-public entities, or businesses covered by sector-specific regulations). By using biskoui, you inherit these fixes without having to implement them yourself.