Adjust the display settings on iPhone
If you have color blindness, motion sensitivity, or other vision challenges, you can customize the display settings to make the screen easier to see.
Use display accommodations
Go to Settings
> General > Accessibility > Display Accommodations.
Adjust any of the following controls:
Auto-Brightness: iPhone automatically adjusts the screen brightness for current light conditions using the built-in ambient light sensor.
Invert Colors: Choose Smart Invert or Classic Invert. Or use accessibility shortcuts. Smart Invert Colors reverses the colors of the display, except for images, media, and some apps that use dark color styles.
Color Filters: Then turn on Color Filters or use accessibility shortcuts. Tap a filter to apply it. To adjust the intensity or hue, drag the sliders.
Reduce White Point: This setting reduces the intensity of bright colors.
You can also apply these effects to only the contents of the zoom window. See Zoom in on the iPhone screen.
Enhance text and buttons
Go to Settings
> General > Accessibility.
Adjust any of the following controls:
Larger Text: Turn on Larger Accessibility Sizes, then adjust the text size using the Font Size slider.
iPhone adjusts to your preferred text size in apps that support Dynamic Type, such as Settings, Calendar, Contacts, Mail, Messages, and Notes.
Bold Text: This setting requires restarting your iPhone.
Button Shapes: This setting underlines text you can tap.
On/Off Labels: This setting indicates switches turned on with “1” and switches turned off with “0”.
Increase contrast and reduce transparency
Go to Settings
> General > Accessibility.
Adjust any of the following controls:
Increase Contrast: This setting improves the contrast and legibility by altering color and text styling.
Apps that support Dynamic Type—such as Settings, Calendar, Contacts, Mail, Messages, and Notes—adjust to your preferred text size.
Reduce Transparency: This setting reduces the transparency and blurs on some backgrounds.
Reduce motion
If you have sensitivity to motion effects or screen movement on your iPhone, you can stop or reduce the movement of some screen elements, such as:
Parallax effect of wallpaper, apps, and alerts
Screen transitions
Siri animations
Typing autocompletion
Animated effects in Messages
Go to Settings
> General > Accessibility > Reduce Motion, then turn on Reduce Motion.
To prevent iPhone from automatically playing bubble and full-screen effects in Messages, turn off Auto-Play Message Effects.
To manually play effects in Messages, tap Replay below the message bubble.