Cluster article · 5 min read

Grayscale your phone: does it reduce screen time?

One of the smallest possible changes is to drain the color out of your screen. It sounds trivial, but there is a real reason it might make your phone a little less magnetic.

Compiled and edited by Hanzala Nadeem Reviewed against current research
Color is a hook

Bright icons and red badges are built to grab attention; grayscale removes some of that pull.

Early evidence is promising but mixed

One study found less phone use in grayscale; another found a smaller, mixed effect.

A small piece, not a cure

Grayscale is light friction that supports other habits, not a fix on its own.

01Why color matters

Your phone is not colorful by accident. Bright app icons, vivid images, and the small red dots on notification badges are carefully chosen to catch the eye. Red in particular reads as urgent, which is why so many alerts use it. Color is one of the levers that makes a screen rewarding to look at and easy to get pulled back into.

Grayscale turns all of that down. In black and white, the icons are duller, the badges lose their alarm-bell red, and the whole device becomes a little less of a treat to glance at. The idea is to remove a cue, not to punish yourself.

02What the research shows

This has actually been tested. In a study published as True Colors, researchers found that college students who switched their phones to grayscale used them less than they did in color. A more recent 2024 study by Dekker and Baumgartner also tested a grayscale intervention for digital well-being and found it could help, though the effect was more modest and uneven than the simple version of the idea suggests.

03How much to expect

The honest truth: The evidence here is early and mixed. One study found a clear reduction, another found a smaller, patchier effect, so grayscale is best seen as a promising, low-cost nudge rather than a proven fix. It will not cure a strong phone habit on its own. What it does well is add a little friction and take some shine off the device, which works best stacked with other changes like notification cleanup, app limits, and phone-free zones. Try it as one ingredient, not the whole recipe.

04How to turn it on

It takes about a minute, and you can switch it back any time.

  • iPhone: Settings, Accessibility, Display and Text Size, Color Filters, then choose Grayscale.
  • Android: look under Digital Wellbeing or Accessibility, often offered as a bedtime or focus setting.
  • Set a shortcut to toggle color back for photos or maps, so grayscale stays the default but is not a hassle.

For more on the design grayscale pushes back on, see why your phone is so hard to put down, and other tools in the digital detox pillar.

05Common questions

Does grayscale reduce screen time?
Early research suggests it can help a little. One study found college students used their phones less in grayscale, though a later study found the effect was modest and mixed. It is a low-cost thing to try.
Why would black and white make a difference?
Bright colors, especially the reds of notification badges and app icons, are designed to grab attention. Stripping color out removes some of that pull, making the phone a bit less rewarding to look at.
Will grayscale fix phone addiction?
No single setting will. Grayscale is a small piece of friction that can support better habits, not a cure. It works best alongside other changes like limits, phone-free zones, and notification cleanup.
Does grayscale make the phone harder to use?
Mostly no, though some things like photos, maps, and color-coded apps are less convenient. Many people keep a shortcut to toggle color back on when they actually need it.
How do I turn on grayscale?
On iPhone, it is under Settings, Accessibility, Display and Text Size, Color Filters, then Grayscale. On Android, it is usually in Digital Wellbeing or Accessibility, often as a bedtime or focus option.

06References

  1. Holte, A. J., & Ferraro, F. R. True colors: Grayscale setting reduces screen time in college students. The Social Science Journal. tandfonline.com
  2. Dekker, C. A., & Baumgartner, S. E. (2024). Is life brighter when your phone is not? The efficacy of a grayscale smartphone intervention. Mobile Media & Communication. journals.sagepub.com

This article is for education only. The grayscale evidence is early and mixed, and is described as such.

Where to go next

Digital detox: what the research actually says The pillar this article belongs to. Best app blockers: what to look for Another friction tool for better habits. Why your phone is so hard to put down The design tricks grayscale is pushing back on.