The verdict in three sentences
An accessible site widens the audience by about 15 % — the share of the population living with a disability — and is becoming an explicit requirement in institutional tenders in 2026. The WCAG 2.1 level AA standard covers the essentials: contrast, keyboard navigation, text alternatives, clear structure. Bonus: these best practices also improve SEO and the experience for all visitors, including on 3G.
Why accessibility is no longer optional
Web accessibility means making a site usable by everyone, including people who are visually or hearing impaired, have reduced mobility, or use a screen reader. Beyond inclusion, it's a business issue: otherwise you exclude a significant share of visitors. In 2026, public tenders and large accounts in West Africa increasingly list WCAG 2.1 AA compliance as a disqualifying criterion in their specifications.
Another often-overlooked benefit: an accessible site is better structured (hierarchical headings, alt tags, semantic HTML), which Google values. Accessibility and SEO advance hand in hand.
The essential WCAG 2.1 AA criteria
| Criterion | AA requirement | Effort |
|---|---|---|
| Text/background contrast | Ratio ≥ 4.5:1 (normal text) | Low |
| Keyboard navigation | Everything usable without a mouse | Medium |
| Text alternatives | Alt attribute on every meaningful image | Low |
| Heading structure | Single H1, logical hierarchy | Low |
| Form labels | Each field tied to a label | Low |
| Visible focus | Clear indicator when using keyboard | Low |
| Video captions | Captions on audio content | Medium |
| Text resizing | Readable up to 200 % zoom | Low |
Cost, gain and market requirement
| Item | 2026 order of magnitude | Impact |
|---|---|---|
| Accessibility audit | 200,000–600,000 FCFA | Report + remediation plan |
| AA-level fixes (showcase site) | 150,000–500,000 FCFA | WCAG 2.1 AA compliance |
| Widened potential audience | ~15 % | More visitors and customers |
| Indirect SEO gain | Structure + semantics | Better ranking |
| Tender requirement | Often disqualifying | Access to public contracts |
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Mini case study
An NGO based in Dakar responds to an international donor tender. The specifications require WCAG 2.1 AA. Its current site fails on contrast (light grey text, 2.8:1 ratio) and missing alt tags. After a 300,000 FCFA audit and 250,000 FCFA fixes (contrasts raised to 4.7:1, alt added, keyboard navigation), the site becomes compliant. Result: an admissible bid, and a site usable by ~15 % more visitors previously excluded.
FAQ
What exactly is WCAG 2.1 AA? It's the intermediate compliance level (between A and AAA) of the Web Content Accessibility Guidelines. It's the reference standard required by most institutions and donors in 2026.
Does accessibility really help SEO? Yes, indirectly. Hierarchical headings, alt tags, semantic HTML and good structure are valued by Google. An accessible site is generally better ranked.
How much does becoming accessible cost? As a 2026 order of magnitude, budget 200,000 to 600,000 FCFA for an audit, plus fixes depending on site size. It's an investment paid back by access to tenders.
Do I have to rebuild the whole site? Rarely. Most fixes (contrast, alt, labels, focus) apply to the existing site. Only very old or poorly structured sites need a deeper rebuild.
Let's talk about your project. We audit and bring your site into WCAG 2.1 AA compliance, ready for tenders and open to everyone. WhatsApp +221 77 596 93 33.
Mohamed Bah
Fondateur, Kolonell
Passionate about digital and entrepreneurship in Africa, Mohamed has been helping Sénégalese businesses with their digital transformation since 2020. Founder of Kolonell, he believes every SME deserves a professional and accessible online présence.
