Published by Accessible Resources Ltd
1. Color Contrast is a tool to measure the contrast between two colors in a screenshot or mobile website, helping ensure your app meets the internationally recognized recommendations in the Web Content Accessibility Guidelines (WCAG), for both versions 2. 1 and 3. + Verify that the color contrast between two colors in an app, website or photo is sufficient to pass WCAG 2. 1 accessibility guidelines / Section 508. + Generate a report that can be shared using SMS, Email or Notes. + Verify color contrast directly from Safari and Photos app. 1.
2. The W3C Accessibility Guidelines 3. 0 (Silver) reference an experimental color algorithm known as S-LUV Advanced Perceptual Contrast (SAPA) or Advanced Perceptual Contrast Algorithm (APCA).
3. When considering large text (i. e. text which is above 18pt or larger), the minimum AA color contrast ratio is 3:1 and for AAA the ratio is 4. 5:1.
4. Tap the 'Share' icon to create a report that can be emailed, added to notes, copied or saved to your Photo Library. WCAG 2. 1 accessibility guidelines have three levels of compliance, A, AA and AAA.
5. For normal text, the AA color contrast ratio is 4. 5:1 and for AAA the color contrast ratio is 7:1.
6. The Color Contrast results will be displayed at the bottom of the screen. 4.
7. Move each color picker in turn to select two colors.
8. Load an image or website by tapping the icon in the top right corner.
9. The image can be an existing image from the Photo Library or a new picture taken with the camera.
10. To re-iterate, this algorithm is experimental and is likely to change in future. - UIColor from RGBA (e. g. - UIColor from HSB (e.
11. Enter a URL to load a mobile website. 2.
Check for direct PC Apps or Alternatives (Direct Download)
| App | Download | Rating | Maker |
|---|---|---|---|
 A11Y |
Get App or Alternatives ↓ | 5 Reviews 4.2 |
Accessible Resources Ltd |
Can I download A11Y for free?
Yes! You can Download A11Y: Audit + Color Contrast from official sites for free using our site.
Can I use A11Y on PC?
It is easy to use the A11Y: Audit + Color Contrast app on PC and it works on Windows and MAC. A free tutorial is available to help you get started.
