Dark mode helps make working in Slack easier on your eyes by using a darker, higher-contrast colour theme. You can turn on dark mode from your Slack preferences, or sync dark mode in Slack with your operating system (OS) settings on certain devices.
Adjust your dark mode preference
Desktop
iOS
Android
Click your profile picture in the sidebar.
Select Preferences from the menu.
Choose Themes, then select Dark.
Click the close icon when you've finished.
iOS 13 and above
On devices running iO3 13 and above, you can enable dark mode in Slack from your OS settings.
Open the Settings app on your iOS device.
Tap Display & brightness.
Under Appearance, select Dark.
iOS 12 and below
On devices running iOS 12 and below, you can manage dark mode from your preferences.
Tap your profile picture in the top right.
Tap Preferences.
Select Dark mode, then choose On.
Tap your profile picture in the top right.
Tap Preferences.
Select Dark mode, then choose On.
Tip: If your device runs Android 9 or lower, select Battery Saver to automatically enable dark mode when your device enters battery saver mode.
Note: The dark mode preference is device-specific, so setting it on the desktop app won’t apply to the mobile app.
Sync dark mode with your OS settings
You can sync dark mode in Slack with your operating system settings. This is supported on Mac, Windows, iOS 13 and above, and Android 10 and above.
Mac
Windows
Android
Click your profile picture in the sidebar.
Select Preferences.
Select Themes.
Tick the box next to Sync with OS setting.
Click your profile picture in the sidebar.
Select Preferences.
Select Themes.
Tick the box next to Sync with OS setting.
Tap your profile picture in the top right.
Tap Preferences.
Select Dark mode, then choose System default.
Note: On iOS 13 and above, dark mode in Slack automatically syncs with your OS settings.
