Posted by Ellen , Mar 17, 2017
As we all know, iOS is the clear leader when it comes to smartphone accessibility. In iOS 10, inverting colors and implementing grayscale have all been consolidated under Display Accommodations in Accessibility. Because Apple is committed to making this a better experience for many users, so they're adding a new Color Filters option to help compensate for color blindness.
This is an app on one of your home screens that you can open by tapping the gray cog icon.
2. Go to General.
3. Tap Accessibility.
4. Select Display Accommodations.
5. Slide the Color Filters switch to the on position.You can see a new option called "Color Filters". Tap it and toggle the feature to turn it on. A list of filters will appear, you'll see three filters: Red/Green, Green/Red, and Blue/Yellow. They compensate for Protanopia (for red/green colorblindness), Deuteranopia (for green/red colorblindness), and Tritanopia ( for blue/yellow colorblindness).
Below, you’ll see a “Custom” section, where you can have customized Hue and Intensity settings. Just drag the "Intensity" slider to adjust the filter's intensity.
Enable Screen Filters To Compensate For Color Blindness