Why Is My Android Phone Black and White? (How to Fix It)

When an Android screen shifts to grayscale, it is almost always triggered by a software policy or automation rule within the operating system. Mobile manufacturers implement monochrome display profiles because removing color reduces blue light exposure, makes the smartphone less visually distracting during late hours, and saves energy on display panels. Identifying the root cause makes reversing the setting straightforward.

The most common reasons your screen turns black and white include:

• Digital Wellbeing and Bedtime Mode: Built-in wellness routines automatically enable grayscale at scheduled hours to encourage you to put down your device before sleep.
• Modes and Routines: Custom automation triggers on Samsung devices that toggle monochrome view based on your location, time, or battery percentage.
• Accessibility Shortcuts: Color correction or color filter settings intended for users with color vision deficiencies that were toggled on by mistake or triggered via a hardware button shortcut.
• Extreme Power Saver: Ultra battery-saving modes that disable GPU color rendering to minimize power drain when your battery runs critically low.
• Developer Options: Hardware-accelerated color space simulation settings configured to monochromacy during system testing.

The single most common culprit behind a black and white screen is an automated sleep tool. On stock Android devices, this feature is called Bedtime mode, while Samsung Galaxy devices manage it through Modes and Routines. When the clock hits your pre-set bedtime, the phone automatically applies a grayscale overlay.

To turn off Bedtime mode on Google Pixel, Motorola, and stock Android phones, open Settings > Digital Wellbeing & parental controls > Bedtime mode. Tap Off to immediately exit the black and white display. If you wish to keep Bedtime mode active without losing screen colors, tap Customize > Screen options at bedtime and toggle off Grayscale.

On Samsung Galaxy devices running One UI, navigate to Settings > Modes and Routines > Sleep. If the mode is active, tap Turn off. To permanently prevent your Samsung phone from turning black and white at night, select Change settings under the Sleep mode configuration menu, find Grayscale, and uncheck it from the applied actions list.

Android offers robust accessibility features designed to help individuals with visual impairments. One of these options is Color Correction, which includes a dedicated Grayscale mode. If an accessibility shortcut key combination was pressed accidentally—such as pressing both volume buttons simultaneously or triple-tapping the side button—grayscale mode can lock into place without warning.

To disable color correction on standard Android devices, go to Settings > Accessibility > Color and motion > Color correction. Ensure the main toggle for Use color correction is turned Off. If it must remain on for color blindness adjustment, ensure the correction mode is set to Deuteranomaly or Protanomaly rather than Grayscale.

On Samsung devices, open Settings > Accessibility > Visibility enhancements. Check both Color adjustment and Color filter. If either menu option is active, toggle the switch to Off. Additionally, tap Accessibility shortcut at the bottom of the main Accessibility menu to make sure no physical keys are mapped to toggle color filters when held down.

Modern smartphones employ advanced power management to keep your phone operational when the battery drops below critical thresholds. Certain battery-saving profiles disable complex screen composition, reducing the interface to a high-contrast black and white theme to preserve remaining charge.

If your battery percentage is low, plug your device into a wall charger. Once power levels rise above 20%, high-efficiency power modes often disable themselves automatically. If the screen remains grayscale after charging, you must manually reset your battery preferences.

Navigate to Settings > Battery > Battery Saver. On stock Android, turn off Extreme Battery Saver or adjust its trigger settings under When to use. On Samsung phones, navigate to Settings > Device Care > Battery > Power saving, tap the three dots or option sub-menu, and ensure that Limit apps and Home screen is turned off, as this setting restricts display color output to minimize panel energy consumption.

If you recently tweaked hidden system preferences or customized animation speeds, you may have altered developer-level display rendering parameters. Android includes a graphics debugging tool that forces the GPU to output entirely in monochromatic space.

To fix this, go to Settings > System > Developer options. (If you do not see Developer options in your main settings list, this step is not the cause of your problem, as the hidden menu is inactive on your device).

Scroll down to the Hardware accelerated rendering section and select Simulate color space. In the pop-up menu that appears, select Disabled. Selecting any other option—specifically Monochromacy—will strip color from the entire user interface, including photos, videos, and games. Once set to Disabled, your screen color will instantly return to normal.

Because custom Android skins organize display options differently, reviewing specific system settings for your brand will ensure no toggles were overlooked. Use this quick reference guide to identify exact menu paths for popular Android manufacturers.

If you have checked every setting above and your phone screen remains stuck in black and white, perform a simple system reboot by holding down the Power button and selecting Restart. A fresh system boot clears temporary display server glitches. If the boot screen logo appears in full color but the home screen reverts to grayscale, a third-party launcher or custom theme app is overriding your display configuration and should be uninstalled.