Enter your color pair
Give the text color, background color, and whether the text is large or normal-sized.
CONTRAST ACCESSIBILITY CHECK
Contrast Fix
Automatically identifies low-contrast UI elements and suggests accessible alternatives while preserving the design direction.
- Uses your inputs in a transparent calculation
- Instant result with practical next steps
- No signup required
Planning guidance only. Validate important decisions with customer evidence and your delivery team.
YOUR INPUTS
Build your result
Complete every field. The result updates only when you choose Calculate.
How it works
Get a real contrast ratio
Contrast Fix calculates the actual WCAG contrast ratio and compares it to the required threshold.
Fix and re-test
Adjust the darker or lighter color until it clears the threshold, then re-check every place the pair is used.
Continue learning: Who should approve MVP requirements?
Frequently asked questions
What contrast ratio do I need?
WCAG AA requires 4.5:1 for normal text and 3:1 for large text (18pt+, or 14pt+ bold).
Does this check WCAG AAA too?
This tool checks the AA threshold, which is the widely accepted baseline for most products. AAA (7:1) is stricter and typically reserved for critical text.
What if fixing contrast changes my brand color too much?
Small adjustments to lightness usually preserve the hue enough to stay recognizably on-brand — try adjusting in small steps rather than picking an unrelated color.
How We Compare
| Feature | MVPHub | WebAIM Contrast Checker | Browser dev tools |
|---|---|---|---|
| Instant WCAG ratio calculation | Included | Included | Included |
| No setup required | Included | Included | Not included |
| Tracks usage across multiple elements | Included | Not included | Not included |
| Free | Included | Included | Included |
WebAIM's checker and browser dev tools both calculate accurate WCAG ratios. Contrast Fix adds a usage-count field so you remember to check every place a failing pair appears.
Related tools
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