We spend more and more time glued to our phones: reading news, browsing social media, chatting, or simply using them as ebook readerThat screen that accompanies us at all times can be very useful, but it can also become a source of eye strain and constant distractions.
When we overuse brightness and intense colors, the screen can become quite annoying to the eyesEspecially at night or if you have any visual sensitivity. This is where the famous grayscale mode comes in: an Android feature that turns the screen black and white to reduce stimuli, take care of your eyes, and, incidentally, to take away some of the addictive charm of the mobile phone.
What exactly is grayscale mode on Android?
Grayscale is basically a screen filter that It removes all colors and replaces them with shades of gray.It doesn't change the content itself, but the way it's displayed: photos, apps, menus, and games look like you're watching an old black and white TV.
This type of adjustment is widely used in accessibility, as some people with color blindness or hypersensitivity to certain colors Users can see the interface better with a reduced color palette. Furthermore, by lowering the color load, the visual experience becomes flatter and less eye-catching, making the phone less appealing to the brain.
It is important to clarify that the grayscale mode It is not a blue light filterIt doesn't replace features like Night Light or Night Mode, which aim to change the color temperature towards warmer tones (yellowish or reddish) to minimize the impact of blue light on sleep. Grayscale simply desaturates the image, but you can combine it with those other modes.
Activating it before bed is primarily useful for reducing visual stimuli: the content becomes less intense, notifications are less flashy, and, in general, you're less inclined to keep doing endless scrollingThe only "but" is that it can slightly interfere with other screen modes (dark theme, night light), although in practice they usually coexist without too many problems.
Why force grayscale: real benefits?
Many users look for ways to force grayscale not only out of curiosity, but because they've heard it helps to reduce mobile phone usage timeAnd it makes perfect sense: apps are designed to hook you with bright colors, attractive icons, and attention-grabbing animations.
When you turn your screen black and white, Instagram photos, TikTok videos, or WhatsApp stories... They lose much of their “magic”They're less visually appealing, and you end up being less inclined to open an app just out of boredom. In the end, you stick to the essentials: calls, messaging, and truly important tasks.
Besides the addictive factor, there's a comfort component. Although grayscale doesn't eliminate blue light, simplifying the color palette reduces chromatic contrast, and that can to alleviate some eye strainespecially when combined with moderate brightness and with night light activated.
Another motivation some mention is battery saving. There are nuances here: in OLED screens, the greatest savings come from... dark themeBecause black pixels consume very little energy. Grayscale alone doesn't save much, but if your custom interface links it to power-saving or screen dimming modes, it can contribute slightly to overall energy consumption.
Main ways to enable grayscale on Android
Android offers several ways to achieve a black and white screen. Depending on the brand and version, the option will be more or less hidden, but it usually comes in three forms: Rest mode (Digital Wellbeing), accessibility settings or developer options.
The advantage is that, although each manufacturer organizes its menus in its own way, the most important paths are repeated in most recent phones: Pixel, Samsung, POCO, Xiaomi, OPPO, realme and other well-known brands usually offer some way to force the grayscale.
Grayscale with Rest mode (Digital Wellbeing)
The most “official” way, and the one designed for the average user, is to use the Rest mode (also called Bedtime or Rest Mode) within Digital well-being and parental controlsThis tool is focused on helping you disconnect from your mobile phone at night.
Sleep mode typically includes several combined settings: silencing calls and notifications, dimming the wallpaper, enabling dark mode, and optionally, set the screen to grayscaleBy activating these options together, your phone becomes much less tempting when you're supposed to be sleeping.
On most mobile phones with Android 13 or later versionsThe typical process for linking grayscale to Sleep mode is usually very similar to this:
- Open the adjustments of the telephone.
- Enter the section “Digital Wellbeing and Parental Control”.
- Tap on “Rest Mode” (or “Bedtime”).
- Activate Sleep mode and select "Personalize" or “Screen options during Rest mode”.
- In that menu, check the box “Grayscale” so that the screen turns black and white when the mode is active.
Once you've done that, you can decide whether you want Sleep mode to activate automatically at certain times (for example, from 23:30 pm to 7:00 am) or if you prefer Activate it manually whenever it suits you.Some layers, such as MIUI or similar, follow an almost identical flow: the typical example is a POCO F4 5G with MIUI 14 on Android 13, where these settings are found exactly as they are in Digital Wellbeing.
Keep in mind that Google recommends updating the Digital Wellbeing app to the latest version, and also allow their notifications so that Sleep mode works correctly and can be programmed without problems.
Grayscale from Accessibility in some layers
Some manufacturers integrate grayscale as an accessibility feature, without needing to use Sleep mode. This is quite common on Samsung phones and in some custom interfaces from other manufacturers, where it's offered as color correction or filter adjustment.
In these cases, the path usually leads through the Accessibility menu. Although the exact name of each option varies depending on the model, the basic flow It tends to be something like this:
- Open the app Settings from your Android.
- Scroll to the section "Accessibility".
- Enter style sections "Vision", “Color and Motion” or “Color Adjustment”.
- Inside, look for options like “Color correction” or “Color Filters”.
- Activate the setting and choose the option “Grayscale” as a type of filter.
On Samsung, for example, grayscale mode may appear as part of the “Color adjustment” Within Accessibility → Vision. Once activated, the entire interface turns to black and white, although screenshots you take will still be saved in color, since the filter is applied at the screen level, not to the content.
If you can't find the option while browsing, a good idea is to use the internal Settings search engine and typing terms like “grayscale,” “monochrome,” “color filters,” or “color correction.” In many layers, this is the quickest way to locate a menu that might otherwise be quite hidden.
Force grayscale using developer options
The most universal alternative, valid for almost all modern Android phones, is to use developer options. This method is less dependent on the brand, as it relies on standard system tools such as “Simulate color space”.
To use this function, you first need to enable developer optionsThis is perfectly safe if you only make the necessary adjustments, although it's advisable to be careful not to change anything unexpected. The general procedure is very similar for all devices:
- Open the adjustments and go to “Phone information” or “About the phone”.
- Look for the section "Build number" (or “Version Number”).
- Tap that number several times in a row (usually 7 or 8 taps) until the system indicates that Developer options have been enabled.
Once the developer menu is enabled, you will need to locate it within the settings (usually in the section "System" or right at the end of the main list) and enter it to look for the option related to color space.
In many recent Android devices, the rue It's something like this:
- Go to Settings → System → “Developer options”.
- Inside, go down until you find “Simulate color space” or a similar option.
- Upon entering, choose the mode “Monochromatism” or “Achromatopsia”.
Once you select that option, the phone's screen will switch to grayscale. It's a fairly straightforward way to force black and white throughout the systemwithout depending on schedules or Sleep mode. Again, the captures will still be in color, but what you see on screen will be displayed in grayscale.
If you want to restore the color, simply return to the same developer menu and set "Simulate color space" to “Disqualified” or “Disabled”. As long as you don't touch other sensitive parameters, there is no risk to the device: you are simply using a tool intended for developers Try out how the app looks in different color spaces.
It's important to note that some very old phones or those with heavily stripped-down interfaces may not offer this specific option in their developer tools. In those cases, and given that third-party apps cannot completely modify the system's color output, There may not be a reliable way to have the entire system in black and white. beyond what the manufacturer offers.
Night mode, night light and its relationship with the grayscale
Android includes other features related to visual comfort that are worth knowing about if you're tinkering with grayscale: dark theme and Night light (sometimes called night mode). Although they pursue different objectives, it is common to combine them to use your mobile phone less aggressively at night.
Dark mode changes the background of compatible apps and menus to black or very dark gray. Besides making it easier on the eyes in low-light environments, on OLED screens it can help... save battery Because black pixels consume less energy. In many versions of Android, you can schedule dark mode to activate at nightfall, at a specific time, or when Sleep mode is activated.
Night Light (or amber light) works differently: it applies a warm tint to the entire screen, reducing the amount of blue light emitted. It's based on the idea that blue light can interfere with sleepSo, by switching to reddish or yellowish tones, the screen appears less harsh at night. It can also be programmed according to a schedule or from dusk till dawn.
Grayscale can coexist with these two settings. For example, you can have the dark theme always active, schedule Night Light to turn on after a certain time, and also have Sleep mode activate when you go to bed. grayscale and muted backgroundIn this way, the mobile phone gradually adapts to a less stimulating experience as the night progresses.
Other useful details: dimmed background, quick access, and limits
Within Sleep mode itself, some versions of Android also allow dim the wallpaper so that it doesn't stand out so much. This option, usually found in "Display options during Sleep mode", reduces the brightness of the background and makes it less noticeable, complementing both the dark theme and grayscale very well.
Another thing to keep in mind is that many of these functions can be activated from the quick settings From the notification shade: dark theme, night light, and even, on some models, shortcuts related to Sleep mode. If you don't see them, sometimes you can simply edit the panel (pencil icon) and drag the buttons you want to have readily available.
Regarding external applications, although there are "blue light filter" apps or similar ones on Google Play that allow Add a color tint and lower the brightnessNot all of them have permission to apply true black and white to the entire system. They usually only overlay a colored layer. Therefore, for a true and complete grayscale, the most reliable option remains using Android's built-in settings. Rest mode, Accessibility, or developer options.
Using grayscale on Android has become a very useful little trick for those who want to rest their eyes and, above all, break the compulsive relationship with the phone.Between Digital Wellbeing's Rest mode, Accessibility settings, and developer tools, virtually any modern mobile phone allows you to force black and white in one way or another, combining it with a dark theme, night light, and dimmed background for a much quieter experience, especially at night. Share this information so other users know how to activate this grayscale feature on Android.