How to use colour correction in Android 7 Nougat

• Deuteranomaly (red-green)
• Protanomaly (red-green)
• Tritanomaly (blue-yellow)

This feature can be used in combination with other accessibility settings such as ‘Inverting colours’. 

1. Open the ‘Accessibility Settings’: Settings > Accessibility. (See the article Open Accessibility Preferences on this website for more information.)
2. Scroll down and tap on ‘Colour correction’. Fig 1.
   
   Fig 1
3. Tap the toggle to enable ‘Colour correction’. Fig 2.
   
   Fig 2
4. The default mode is set for ‘Deuteranomaly (red-green)’ colour blindness. To change this setting tap on ‘Correction mode’. Fig 3.
   
   Fig 3
5. Tap on the colour correction mode you wish to try using. Fig 4.
   
   Fig 4
6. Press the ‘home button’ to return to the home screen.

Note: These instructions apply to the standard version of Android 7 Nougat.  Please be aware that many device manufacturers add their own customisations to the Android operating systems so you may find minor differences from the steps shown.