How to reduce the intensity of bright colours on iPhone/iPad/iPod Touch

How to use Reduce White Point

1. Open the ‘Accessibility Settings’: Settings > General > Accessibility. (See the article Open Accessibility Preferences on this website for more information.)
2. Under the ‘Vision’ section, tap ‘Display Accommodations’.
   
3. Tap the toggle switch next to ‘Reduce White Point’ to enable this feature.
   
4. The intensity of bright colours is automatically reduced. To adjust the intensity further, drag the slider to the left to reduce intensity and to the right to increase it.
   
5. When happy with your settings, either tap the back button in the top left of the screen to return to the main ‘Accessibility’ settings screen or press your device’s ‘Home’ button to return to the home screen.