What you can actually change on an iPhone screen
iPhone gives you control over how your screen looks, but not in the way you might expect. You cannot change the colour of individual pixels or paint your home screen a different hue. What you can do is adjust the overall colour temperature, enable a dark mode that inverts bright backgrounds to dark ones, explore colour filters for accessibility, or use a wallpaper that sets the visual tone of your lock and home screens.
The most common request — making your screen warmer or cooler — is handled by a feature called Night Shift, which reduces blue light in the evening. If you want your entire interface darker, Dark Mode switches the background from white to black and text from black to white. For more dramatic changes, colour filters and accessibility settings let you shift the entire display.
Each of these lives in a different place in Settings, and which one you need depends on what you are trying to achieve.
Key Takeaways
- Night Shift reduces blue light and makes your screen warmer; it is found in Settings > Display & Brightness > Night Shift and can be scheduled automatically.
- Dark Mode inverts your entire interface to a dark background and is toggled in Settings > Display & Brightness or Control Center.
- Colour filters and accessibility options like Grayscale or Colour Tint let you shift the display for vision needs or personal preference.
- Wallpapers do not change the system interface but set the visual backdrop of your lock screen and home screen.
How to turn on Night Shift for a warmer screen
Night Shift is the easiest way to change how your screen feels. It shifts the display toward the warmer end of the spectrum — more orange, less blue — which many people find easier on the eyes in low light.
Open Settings, tap Display & Brightness, then tap Night Shift. You will see a toggle at the top; turn it on. A slider below lets you drag toward More Warm or Less Warm to set the intensity. The default is somewhere in the middle.
To schedule it automatically, tap the Scheduled toggle and choose either Sunset to Sunrise (which uses your location to time it) or Custom, where you set exact times. If you leave Scheduled off, Night Shift stays on until you turn it off manually or until the next day.
You can also control Night Shift from Control Center. Swipe down from the top right corner (or up from the bottom on older models), find the brightness controls, long-press them, and tap the Night Shift icon to toggle it on or off.
How to enable Dark Mode for a darker interface
Dark Mode changes your entire interface — not just the warmth, but the actual colours. Backgrounds turn black, text turns white, and apps that support Dark Mode follow suit. This is different from Night Shift, which keeps the interface the same but shifts the colour temperature.
Go to Settings, tap Display & Brightness, and select Dark from the three options at the top (Light, Auto, or Dark). Choose Dark and your phone switches when ready. Choose Auto if you want it to follow your sunset and sunrise times automatically.
You can also toggle Dark Mode from Control Center. Swipe down from the top right, long-press the brightness controls, and tap the Dark Mode icon.
Not every app respects Dark Mode — older apps or web pages may still show a light background. But Apple's built-in apps and most modern third-party apps will follow your choice.
How to use colour filters for more control
Colour filters are accessibility tools that shift your entire display in specific ways. They are more powerful than Night Shift and Dark Mode but are designed for people with colour blindness or other vision needs. You can use them for any reason.
Go to Settings, tap Accessibility, then Display & Text Size, then Colour Filters. Turn on the toggle. You will see six filter options: Grayscale (removes all colour), Red/Green Filter, Green/Red Filter, Blue/Yellow Filter, and Colour Tint.
Grayscale turns your entire screen to shades of grey. The colour-specific filters adjust how the display renders for people who have difficulty distinguishing certain colours. Colour Tint lets you add a tint across the whole screen — you can choose the hue and intensity with sliders.
Once you turn on a filter, it stays on until you turn it off. You can also add a shortcut to Accessibility Shortcuts so you can toggle it quickly from Control Center or by triple-pressing the side button.
How to set a wallpaper to change your screen appearance
A wallpaper does not change the system interface itself, but it sets the visual backdrop of your lock screen and home screen, which is often what people mean when they say they want to "change" their screen.
Go to Settings, tap Wallpaper, then tap Customize Lock Screen or Customize Home Screen. Tap the preview image to choose a new wallpaper from Apple's built-in collection, your photo library, or a colour. Some wallpapers include widgets or allow you to adjust the colour overlay.
You can set different wallpapers for your lock screen and home screen. Once you choose one, tap Set and confirm whether you want it on Lock Screen, Home Screen, or both.
Combining Night Shift, Dark Mode, and filters
You can use Night Shift and Dark Mode together. Dark Mode changes the interface colours; Night Shift then warms up whatever is on screen. This combination is popular for evening use because it removes both blue light and bright white backgrounds.
Colour filters work alongside both. If you turn on Grayscale and Dark Mode, your screen will be dark and grey. If you add Night Shift on top, it will warm the grey tones.
Experiment with combinations to find what feels right for your eyes and your environment. None of these settings affect how your phone performs — they are purely visual.
Troubleshooting screen colour changes that do not work
If Night Shift is on but your screen does not look warmer, check whether you have a colour filter enabled. A colour filter will override Night Shift's effect. Turn off the filter in Settings > Accessibility > Display & Text Size > Colour Filters and try again.
If Dark Mode is on but some apps still look light, those apps do not yet support Dark Mode. You can force Dark Mode on web pages in Safari by going to Settings > Safari > Advanced > Reader Settings and toggling Dark Mode there, but individual apps cannot be forced.
If you scheduled Night Shift to turn on at sunset but it is not working, make sure Location Services is on so your phone knows when sunset is. Go to Settings > Privacy > Location Services and make sure it is enabled.
Frequently Asked Questions
Can I change the colour of individual app icons or the home screen grid?
No. iOS does not let you recolour individual icons or change the grid background beyond setting a wallpaper. You can create custom icons using the Shortcuts app and third-party apps, but the system interface itself cannot be recoloured.
Does Night Shift actually help with sleep?
Night Shift reduces blue light, which can interfere with melatonin production in the evening. Whether it meaningfully improves sleep varies by person. It is most effective if you use it consistently in the hour or two before bed, combined with other habits like dimming your screen brightness.
Will Dark Mode drain my battery faster or slower?
On iPhones with OLED screens (iPhone 12 and newer), Dark Mode uses slightly less battery because black pixels require less power than white ones. On older iPhones with LCD screens, there is no battery difference.
Can I set different screen colours for different times of day?
Yes, through scheduling. Set Night Shift to Sunset to Sunrise so it turns on automatically in the evening. Set Dark Mode to Auto so it switches at sunset and sunrise. You can also create an Automation in the Shortcuts app to trigger colour filters at specific times.
What is the difference between Night Shift and Reduce White Point?
Night Shift warms the colour temperature. Reduce White Point, found in Settings > Accessibility > Display & Text Size, dims the brightest whites on screen without changing colour. Use Reduce White Point if you want less brightness but not a warmer tone.