Accessible Experiences
Color Contrast Basics for Websites
Keep text and controls readable across themes, states and real devices without relying on color alone. Store approved accessible color tokens in the design system so teams do not solve contrast repeatedly.
There is rarely one useful answer without context. Contrast affects people with low vision, color-vision differences, glare and poor displays. Brand colors can usually be adjusted or paired without losing recognition. The same principle applies to color contrast.
What is really happening
Keep text and controls readable across themes, states and real devices without relying on color alone. A useful solution should remain understandable after the immediate task is complete.
Turn the idea into action
- Test text pairs: Measure foreground and background combinations for normal and large text.
- Include states: Check links, focus, disabled controls, errors, charts and dark mode.
- Use more than color: Add labels, icons, patterns or text for status and required meaning.
- Test real content: Review overlays, photographs, gradients and user-generated values.
The details should match the size and risk of the system. A small website may need a lightweight check, while an application handling accounts or payments deserves staged testing and stronger evidence.
Avoid this mistake
Do not sample only the center of a gradient when text crosses several background values.
Check the outcome
Store approved accessible color tokens in the design system so teams do not solve contrast repeatedly.
Related practical guides
For deeper technical background, see the W3C Web Accessibility Initiative. For hands-on help, explore SoftNSM's graphic design service or discuss the requirement.