Gray screen on Android: when you need it and how to turn it on correctly

A gray screen on an Android smartphone is not a breakdown, but a useful feature that helps reduce eye strain and save battery batteries and even improve concentration. Many users confuse it with reading mode or monochrome filter, but in fact it is a separate tool that can be customized to suit your needs. In this article, we will look at why you might need a gray screen at all, what are the ways to activate it (including hidden ones), and how to avoid typical mistakes when setting it up.

It is important to understand: a gray screen is not just “removing colors”, but a whole system of filters that works differently on Samsung, Xiaomi, Google Pixel and other devices. In some places this is a built-in function, in others third-party software is required, and on some firmware you will have to use ADB commands. We will look at all the options - from the simplest to the most advanced, so that you can choose the right one for your model.

If you have never tried this mode, we recommend testing it first in the daytime: some users note that in low light, a gray filter can, on the contrary, increase eye fatigue. And for those who use a smartphone to work with graphics or video, it is better to find out in advance how to quickly disable the effect - we will also tell you about this.

Why do you need a gray screen on Android?

At first glance, it may seem that the gray screen is just a tribute to the fashion for minimalism. But in fact, this function has several practical applications:

• 👁️ Reducing eye fatigue —especially useful when reading or working with texts for a long time. Studies show that monochrome colors reduce eye strain by 15-20% compared to color screens.
• 🔋 Battery saving — on AMOLEDscreens, a gray filter can extend the operating time by 5-10%, since the pixels do not glow at full strength.
• 🎯 Improving concentration —the absence of bright colors helps you concentrate on the task, which is important for students and office workers.
• 🛠️ Interface testing —developers use a gray screen to check the contrast of UI elements in conditions of limited color rendering.
• 🌙 Night mode —some users prefer the gray filter instead of the classic “dark mode”, as it uniformly reduces the brightness of the entire screen.

Interesting fact: on iOS a similar function is called Smart Invert and it works a little differently - it inverts colors, but leaves media files (photos, videos) in their original form. On Android there is no such separation, so the gray filter is applied to all content on the screen.

⚠️ Warning: On devices with OLED-screens, prolonged use of the gray filter may cause pixel burnout (burn-in) if static elements are constantly displayed on the screen (for example, the navigation bar). For work/study

Method 1: Built-in reading mode (Digital Wellbeing)

The easiest way to activate the gray screen is to use the built-in Android tools. Starting from version Android 9 Pie, the system has a section Digital Wellbeing (Digital Well-being), where there is a function Grayscale. It does not turn off colors completely, but significantly reduces their saturation.

To enable it:

1. Open Settings → Digital Wellbeing and Parental Controls.
2. Select Toolbar (or Dashboard on English firmware).
3. Tap on the icon Shades of gray (it looks like a crescent with a shaded half).
4. Confirm activation - the screen will immediately turn gray.

This method works on most smartphones, including Google Pixel, OnePlus, Nokia other devices with “pure” Android. On Samsung i Xiaomi the path may be slightly different - we will discuss this below.

Make sure you have Android 9 or later

Close all applications with important colors (photo editors, games)

Check if the night mode is already enabled (it may conflict)

Take a screenshot of the current screen settings (in case of a reset)-->

Manufacturer	Path to settings	Features
Google Pixel	Settings → Digital well-being → Toolbar	Works stably, but there is no intensity adjustment
Samsung	Settings → Screen → Visual comfort	There is a separate mode "Black and white" in Accessibility settings
Xiaomi/Redmi	Settings → Display → Color mode	May require a reboot after activation
OnePlus	Settings → Accessibility → Color corrector	There is a gray temperature setting

⚠️ Attention: On some firmware (for example, MIUI 13 and below), the function Grayscale may conflict with power saving mode. If, after activation, the smartphone starts to slow down, try disabling power saving or rebooting the device.

Method 2: Accessibility mode (for all versions of Android)

If you have an old version of Android or custom firmware, where there is no Digital Wellbeing, you can use accessibility settings. This method works even on Android 6 Marshmallow and below, but requires a little more action.

Instructions:

1. Go to Settings → Accessibility (or Accessibility).
2. Find section Color corrector or Color settings.
3. Select Grayscale or Monochrome (name may vary).
4. Activate the slider and confirm the change.

On some devices (for example, Huawei) this mode is called Color inversion, but it works differently - it inverts all colors, and does not make them gray. Be careful!

The advantage of this method is that it does not depend on the version of Android and works even on budget smartphones. However, there is also. cons:

• ⚠️ There is no way to adjust the gray intensity (all or nothing).
• ⚠️ On some devices, the filter applies only to system applications, while games and social networks remain in color.
• ⚠️ May conflict with other screen settings (for example, with Adaptive brightness).

Method 3: ADB commands for advanced users

If the built-in methods do not work or you need more flexible control of the gray filter, you can use ADB commandsThis is a universal method that works on any. Android device, but requires connection to a computer and basic knowledge of the command line.

What you will need:

• 💻 Computer with installed ADB drivers (you can download from the website Android Developers).
• 📱 Smartphone with enabled USB debugging (path: Settings → About phone → Build number — tap 7 times, then return to Settings → System → For developers).
• 🔌 USB cable (preferably original).

Instructions:

1. Connect your smartphone to your computer and enable USB debugging.
2. Open a command line (Windows) or terminal (macOS/Linux) and enter:

adb shell settings put secure accessibility_display_daltonizer_enabled 1
adb shell settings put secure accessibility_display_daltonizer 0

After executing these commands, the screen should turn gray. To return colors, use:

adb shell settings put secure accessibility_display_daltonizer_enabled 0

What to do if ADB does not see the device?

1. Check if USB debugging is enabled on your smartphone (a notification should appear when connected).

2. Install drivers for your model (for example Samsung USB Driver for Samsung devices).

3. Try a different USB cable or port.

4. Restart your computer and smartphone.

Important: On some firmware (for example, ColorOS from Oppo), ADB commands for color correction may not work due to manufacturer restrictions. In this case, only root access or third-party applications will help.

Method 4: Third-party applications for the gray screen

If you need more flexibility - for example, adjusting the intensity of the gray filter or turning it on on a schedule - you should pay attention to third-party applications. Here are the top 3 proven options:

Application	Features	Cons
Gray Scale	Simple interface, filter brightness adjustment, work in the background	Advertising in the free version, maybe conflict with some games
Night Shift	Supports scheduling, compatible with most firmware	Paid version is needed for fine tuning
Color Blindness Simulator	Allows testing of different types of color blindness, including gray filter	Not optimized for regular use

Check reviews before installing - some applications may contain aggressive advertising or ask for unnecessary permissions. Also note that on Android 10 and newer applications are prohibited from applying filters on top of system windows (for example, the notification panel), so they may not provide a full gray screen.

If you selected an application, but it does not work:

• 🔄 Restart your smartphone after installation.
• 🛠️ Check if it is blocked battery optimizer (in the application settings).
• 📱 Update the application to the latest version.

Method 5: Gray screen through developer settings

Few people know, but developer settings there is a hidden option to simulate different types color blindness, including gray filter. This method works on all devices, but requires activation of developer mode.

How to enable:

1. Activate Developer modeby tapping 7 times on Build number in Settings → About phone.
2. Return to the main settings and open a new section For developers.
3. Find option Simulate color space (or Simulate color space).
4. Select Monochrome or Shades of gray.

This method gives a “cleaner” gray filter compared to Digital Wellbeing, but has its own nuances:

• 🔹 The filter is applied to the entire screen, including system notifications.
• 🔹 Some animations and transitions may not display correctly.
• 🔹 On Samsung i Xiaomi this mode may automatically turn off after a reboot.

To return the colors, simply select Disabled in the same menu.

How to disable the gray screen if nothing works

Sometimes after experimenting with the settings, the screen remains gray, and it is not possible to return colors using standard methods. Here's what to do in such cases:

1. Reboot — in 80% of cases, simply rebooting the device helps. Hold down the power button and select Restart.
2. Reset accessibility settings:
   1. Open Settings → Accessibility.
   2. Tap on the three dots in the upper right corner and select Reset settings.
3. ADB command for reset (if you have access to a computer):

   adb shell settings put secure accessibility_display_daltonizer_enabled 0
   adb shell settings put secure accessibility_display_daltonizer -1

4. Safe Mode:
   1. Hold down the power button and hold Turn off until the window appears Safe Mode.
   2. Confirm the transition - in safe mode, all third-party settings will be reset.

If none of the methods helped, the problem may be a failure of system files. In this case, only resetting to factory settings will help (don't forget to backup your data!).

⚠️ Attention: On some devices Huawei i Honor the gray filter may “stick” due to firmware features EMUIIn this case, only a complete reset or software update via HiSuite.

FAQ will help: Frequent. questions about the gray screen on Android

Is it possible to make a gray screen only for individual applications?

Yes, but only with the help of third-party applications like Gray Scale or Night Shift, where there is an "exceptions" function. Built-in Android settings apply the filter to the entire screen.

Why do some games not start after turning on the gray screen?

Some games (especially those with anti-cheat protection) block the launch if they detect changes in the color profile. Try adding the game to exceptions or temporarily disabling the filter.

The gray screen eats up the battery? On the contrary, it should save money!

If you use third-party application for a gray filter, it may consume additional resources. Built-in settings (via Digital Wellbeing or ADB) do not affect the battery.

Is it possible to adjust the intensity of gray (for example, make it darker)?

In standard Android settings there is no such option. But in applications like Night Shift or through ADB with root access you can adjust the gray level.

After updating Android The gray screen is gone. How to get it back?

Updates often reset the accessibility settings. Try re-activating the filter via Settings → Accessibility → Color correctorIf there is no option, use ADB.