Grayscale Phone Benefits: Does Black and White Really Help?
Short answer
The main grayscale phone benefits are simple: with the color gone, bright app icons, red badges and flashy videos lose some of their pull, so many people pick up their phone less and put it down sooner. At least one small study found that college students cut their daily screen time after switching to grayscale. It isn't a cure, and the effect can fade, but it's free, takes 30 seconds and is easy to undo.
If you're considering grayscale because your phone feels impossible to put down, Check my brainrot to see how strong the pull really is before and after you try it.
What the grayscale phone study found
The best-known research is a study by Alex Holte and F. Richard Ferraro at the University of North Dakota, published in The Social Science Journal under the title "True colors: Grayscale setting reduces screen time in college students." Participants tracked their screen time normally, then switched their phones to grayscale, and their daily screen time dropped during the grayscale period.
A few honest caveats:
- It was a small study of college students, not a huge trial.
- It measured screen time, not happiness, focus or grades.
- It ran for a short period, so it can't say whether the effect lasts for months.
So what's the fair summary? Grayscale seems to help some people use their phone less, at least at first. It's a good experiment, not a guarantee. You'll see the same mix on grayscale phone Reddit threads: some people swear by it, others say they got used to it within a couple of weeks.
Why color pulls you in
Apps are designed to be eye-catching. Think about what color does on your screen:
- Red notification badges look urgent, like a tiny alarm.
- Bright app icons stand out and invite a tap.
- Thumbnails and short videos use saturated color to grab you mid-scroll.
- Rewards like likes and hearts are usually bright.
Take the color away and your phone looks more like a tool than a toy. A gray TikTok is still TikTok, but it's a bit less exciting. That small drop in excitement is the whole idea behind using grayscale for phone addiction, or at least for the everyday "I can't put it down" feeling.
Grayscale phone pros and cons
| Pros | Cons |
|---|---|
| Free and built into your phone | Photos and maps are harder to use |
| Takes 30 seconds to set up | Some people get used to it quickly |
| Easy to undo with a shortcut | Doesn't stop notifications by itself |
| Makes feeds a little less exciting | Won't fix habits like phone-in-bed |
How to turn on grayscale
Phone grayscale on iPhone
- Open Settings > Accessibility.
- Tap Display & Text Size.
- Tap Color Filters and turn it on.
- Choose Grayscale.
Phone grayscale on Android
Menus vary by brand, but try these:
- Pixel and many others: Settings > Accessibility > Color and motion (or Text and display) > Color correction > turn on and pick Grayscale.
- Bedtime mode grayscale: Settings > Digital Wellbeing > Bedtime mode, then turn on Grayscale so your screen goes black and white only at night.
- Samsung: Settings > Accessibility > Visibility enhancements > Color adjustment or Color filter (options differ by model).
If you can't find it, search "grayscale" or "color correction" in the Settings search bar.
The one-tap shortcut trick
The biggest complaint about grayscale is that you sometimes need color: sending a photo, reading a map, picking an outfit. The fix is a shortcut so you can flip it on and off in a second, while keeping gray as the default.
Grayscale shortcut on iPhone:
- Go to Settings > Accessibility > Accessibility Shortcut (at the bottom of the list).
- Select Color Filters.
- Now triple-click the side button (or home button on older phones) to toggle grayscale.
Grayscale shortcut on Android: add a Color correction tile to your Quick Settings panel (swipe down, tap the pencil icon, drag the tile up), or turn on the accessibility shortcut for Color correction.
The rule: color is for tasks. When the task is done, triple-click back to gray.
Here's the tricky part: judging whether grayscale is actually working for you, and not just guessing from a feeling. Brainrot Test gives you a brainrot score from 0 to 100 based on 17 questions about what you really do on your phone, and a re-check every Sunday re-measures it. Take it before you go gray, then watch your weekly number. Check my brainrot
When grayscale stops working
For many people, grayscale works best in the first few weeks. After that your brain adjusts and the gray feed starts to feel normal. Signs it's wearing off:
- Your screen time has crept back to where it was.
- You find yourself leaving color on "just for a minute" all day.
- You don't even notice the gray anymore.
What to do then:
- Stack it with another trick. Grayscale plus notifications off plus the phone charging outside your bedroom is much stronger than grayscale alone. There are more ideas in how to use your phone less without app limits.
- Use bedtime grayscale only. Save it for evenings, when scrolling does the most damage to sleep.
- Take a break and come back. A few weeks in color, then grayscale again, can make it feel fresh.
- Fix the habit, not only the screen. If you keep checking out of boredom or habit, see why do I keep checking my phone.
Test the grayscale phone benefits on your own habits
Grayscale phone benefits are real for some people and small for others. The only way to know is to measure. In the next few minutes Brainrot Test gives you your score, your tier and your rank against everyone who has taken it, and the two-minute daily drill pairs well with grayscale: each finished drill takes a point off your score, and Sunday's re-check shows whether the gray screen is helping.
FAQ
Does grayscale help phone addiction?
Grayscale can make your phone less appealing, and a small study found college students used their phones less after switching. It isn't a treatment, and the effect can fade as you get used to it. It works best combined with other changes like turning off notifications.
Does grayscale reduce screen time?
For some people, yes, especially in the first few weeks. Check your Screen Time or Digital Wellbeing report for a week before and a week after to see whether it works for you.
Is grayscale bad for your eyes?
Grayscale is an accessibility setting that just removes color, and there's no good reason to think it harms your eyes. It won't reduce blue light on its own, though, so use Night Shift or a night light mode for that.
How do I quickly turn grayscale on and off on iPhone?
Set the Accessibility Shortcut to Color Filters in Settings, under Accessibility. Then triple-click the side button to switch between grayscale and color.
Should teens use a black and white phone?
It's a low-risk experiment worth trying for a couple of weeks, especially at night. If it helps you put the phone down sooner, keep it. If you stop noticing it, combine it with other tricks.