Change the color tone and brightness of your iPhone screen

You can adjust the color and warmth of your iPhone's display through the Display & Brightness settings. This lets you make the screen warmer (more yellow) or cooler (more blue), and you can do it manually or set it to change automatically based on the time of day.

Open Settings, then tap Display & Brightness. You'll see a slider labeled Color Tone — drag it left to make the screen warmer or right to make it cooler. The change happens in real time as you move the slider, so you can find the tone that feels most comfortable to your eyes.

If you want the color to shift automatically, turn on True Tone (on newer iPhones) or Night Shift. True Tone adjusts the display to match the color temperature of the light around you throughout the day. Night Shift makes the screen warmer in the evening to reduce blue light before bed — you can set a schedule or turn it on manually anytime.

Key Takeaways

  • The Color Tone slider in Display & Brightness lets you warm or cool your screen when ready without any scheduling.
  • True Tone automatically adjusts your display color based on the ambient light in your surroundings.
  • Night Shift warms your screen in the evening and can run on a schedule you set or be turned on manually.
  • You can also change your home screen and app icon appearance through the Accessibility settings if you need higher contrast or inverted colors.

Use Night Shift to reduce blue light in the evening

Night Shift gradually shifts your display toward the warmer end of the color spectrum as the sun sets. This reduces the amount of blue light your eyes receive, which can make it easier to fall asleep if you use your phone before bed.

Go to Settings > Display & Brightness > Night Shift. Tap Scheduled to set a time range — for example, 9 PM to 7 AM — and Night Shift will turn on and off automatically. If you prefer to control it manually, leave Scheduled off and use the toggle to turn Night Shift on or off whenever you want. You can also adjust the Color Temperature slider to make the effect stronger or weaker.

Night Shift does not change the actual colors in photos or videos you view — it only affects the overall tone of the display. If you need to see true colors (for example, if you're editing a photo), you can turn Night Shift off temporarily without affecting your schedule.

Invert colors for better contrast and readability

If you find it hard to read text or see details on your screen, you can invert the colors so that white backgrounds become black and text becomes light. This is especially useful in low-light settings or if you have light sensitivity.

Open Settings > Accessibility > Display & Text Size. Scroll down and toggle on Smart Invert or Classic Invert. Smart Invert flips most colors but keeps images and videos looking normal. Classic Invert flips everything, including images. Try both to see which one works better for you — you can switch between them anytime.

Inverted colors stay on until you turn them off, and they explore to your entire phone, including apps, messages, and the home screen. You can also add a shortcut to toggle inversion quickly: go to Settings > Accessibility > Accessibility Shortcut, then select Smart Invert or Classic Invert. After that, triple-click the side button (or home button on older models) to turn inversion on or off when ready.

Adjust text size and bold text for easier reading

Making text larger across your phone is one of the fastest ways to improve readability. You can increase the size of text in apps, messages, and settings without zooming in on individual screens.

Go to Settings > Display & Brightness > Text Size and drag the slider to the right to make text larger. This affects most built-in apps and many third-party apps. If you need even larger text, go to Settings > Accessibility > Display & Text Size and turn on Larger Accessibility Sizes, which gives you a wider range of sizes to choose from.

You can also turn on Bold Text in the same Accessibility menu. This makes all text on your phone appear thicker and darker, which helps it stand out against the background. Bold Text requires you to restart your phone after you turn it on, but the change is permanent until you turn it off.

Change your home screen appearance with Light or Dark mode

Your iPhone can automatically switch between a light home screen (white background with dark text) and a dark home screen (dark background with light text) based on the time of day or your preference.

Open Settings > Display & Brightness. At the top, you'll see three options: Light, Dark, and Automatic. Tap Light to keep a bright, clean look all day. Tap Dark to use a dark theme. Tap Automatic to let your phone switch to Dark mode at sunset and back to Light mode at sunrise — you can customize these times if you want.

Dark mode reduces the brightness of your screen and can be easier on your eyes in dim lighting. Light mode is often clearer in bright sunlight. Most apps follow your system setting, though some apps let you override it in their own settings. You can also create custom home screen wallpapers and app icons that match your chosen appearance.

Use accessibility color filters for color blindness or vision needs

If you have color blindness or other color vision differences, your iPhone can explore filters that make it easier to distinguish between colors on your screen.

Go to Settings > Accessibility > Display & Text Size > Color Filters. Turn on the toggle, then choose from Grayscale, Red/Green Filter, Green/Red Filter, Blue/Yellow Filter, or Monochrome. Each filter is designed for different types of color blindness. You can adjust the Intensity slider to make the effect stronger or weaker depending on what works best for you.

Color filters explore to your entire display and stay on until you turn them off. Like Smart Invert, you can add Color Filters to your Accessibility Shortcut so you can toggle them on and off with a triple-click of the side button.

Frequently Asked Questions

Can I set different color settings for different times of day?

Yes, through Night Shift. You can schedule it to turn on at a specific time (like 9 PM) and turn off at another time (like 7 AM), and it will automatically adjust your screen color during that window. True Tone also changes color throughout the day based on the light around you, though you cannot set a specific schedule for it.

Will changing the color tone affect the actual colors in my photos?

No. Color Tone, Night Shift, and True Tone only change how your display shows colors — they do not change the photos themselves. When you send a photo to someone else or save it, the original colors remain unchanged. If you need to see true colors while editing, you can turn off Night Shift temporarily.

What is the difference between Smart Invert and Classic Invert?

Smart Invert flips most colors but keeps photos and videos looking normal, so images do not appear inverted. Classic Invert flips all colors, including images. Smart Invert is usually more comfortable for everyday use, but Classic Invert gives you a true dark mode if that is what you prefer.

Does Dark mode save battery on my iPhone?

On iPhones with an OLED screen (iPhone 12 and newer), Dark mode can reduce battery drain slightly because dark pixels use less power than bright ones. On older iPhones with LCD screens, Dark mode does not save battery. Either way, the difference is small — choose the appearance that is most comfortable for your eyes.

Can I use multiple color settings at the same time?

Yes. You can have Night Shift on and also use Color Filters, or have Dark mode and Smart Invert both active. Experiment with combinations to find what feels best. If your screen looks too different from what you expect, turn off one setting at a time to see which one is causing the change.