Digital accessibility means making sure anyone can use your website: with a screen reader, with only a keyboard, with low vision, or with little digital familiarity. Beyond a legal and ethical obligation, it is one of the most direct paths to raising conversion.
What digital accessibility is
It is the set of code, design, and content decisions that remove barriers to use. The international reference is WCAG, organized around four principles: perceivable, operable, understandable, and robust. In Brazil, the national inclusion law reinforces this requirement for websites and services.
| Principle | Key question | Concrete application |
|---|---|---|
| Perceivable | Can it be seen and heard? | Adequate contrast and alt text on images |
| Operable | Can it be used without a mouse? | Keyboard navigation with a visible focus state |
| Understandable | Can it be understood? | Clear language and explanatory errors |
| Robust | Does it work on any technology? | Semantic HTML and correct labels |
The basics that solve most of it
- Contrast: light gray text on a light background is the most common mistake, and the easiest to fix.
- Alt text: describe the image's function, not the file name.
- Heading structure: one H1 per page and a hierarchy with no skipped levels.
- Labeled forms: every field with an associated label.
- Visible focus: keyboard users need to see where they are.
Impact on conversion
An accessibility barrier is friction for everyone. An unlabeled button confuses a screen reader and also a hurried user. A poorly described form error traps a blind user and a sighted one alike. Fixing accessibility tends to raise the overall form completion rate; combine it with lead capture forms and CRO.
How to test without paid tools
- Navigate the entire page using only Tab and Enter.
- Zoom in to 200% and check that content remains usable.
- Run an automated browser audit for contrast and labels.
- Read the page with your operating system's built-in screen reader.
Minimum accessibility checklist
- Text contrast passing on both light and dark backgrounds
- Every informative image with alt text
- Heading hierarchy with no skipped levels and a single H1
- Full keyboard navigation with a visible focus state
- Form fields with a label and a descriptive error
- No information conveyed by color alone
Conclusion
Accessibility does not raise the cost of a project when it is built in from the start; it raises the cost when it becomes an emergency fix later. KCLOCK treats it as a build standard. Check out website creation or get in touch.
Frequently asked questions about digital accessibility
What is digital accessibility?
It is the set of design, code, and content decisions that let anyone use a website, including people using a screen reader, keyboard-only navigation, or low vision.
Is an accessible website legally required in Brazil?
Brazil's inclusion law requires websites and digital services to be accessible, generally using WCAG as the technical reference.
Does accessibility help SEO?
Yes. Semantic structure, heading hierarchy, and alt text help both screen readers and search engines interpret the page.
Where should I start?
Text contrast, alt text, heading hierarchy, keyboard navigation with a visible focus state, and forms with labels and descriptive error messages.
About the author
Yara Iencius
Partner and Head of Design & UX, KCLOCK
Conversion designer. Responsible for UX/UI, interfaces, landing pages, and e-commerce sites that turn strategy into a high-converting experience.
- #accessibility
- #design
- #best practices
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