Get Started
Contrastly helps you verify color contrast against WCAG accessibility standards. All calculations are performed locally on your device.
- Select foreground and background colors
- Review contrast ratio and compliance results
- Preview readability in context
- (Pro) Export accessibility reports
Privacy: No data is collected or transmitted. Everything runs on-device.
Troubleshooting
The contrast ratio looks different from another tool
Different tools may use different color handling methods. Contrastly uses WCAG relative luminance calculations for opaque sRGB colors.
I can't export a PDF
- Make sure Pro is unlocked
- Tap Restore Purchases
- Restart the app
History items are missing
Free version may limit history access. Upgrading to Pro unlocks full history.
Billing & Purchases
Purchases are handled securely through Apple.
- Use Restore Purchases if needed
- Refund requests must be handled by Apple
Contrastly does not store payment information.
Contact
For support or feedback:
Email:
vikalp_labs@yeah.net
Please include:
- Device model
- iOS version
- App version
- Color values if relevant
Legal
You can review our policies below:
Contrastly performs all calculations locally and does not collect personal data.