This article details the process of activating and deactivating Dark Mode in Outlook 365 for Windows, the web, the iPhone, and the Mac.
Learn the Steps to Make Outlook 365 Look Like Night

Dark Mode is available in every edition of Outlook 365. The on/off toggles and automatic control settings are platform-specific (the steps to turn on Dark Mode in other Office 365 apps are similar). A Microsoft 365 subscriber is required to use Dark Mode in the desktop edition of Outlook 365 on a Windows computer, Mac computer, or iOS device (but you can use it on the web without a subscription).
- Using Windows, Activate the Dark Theme in Outlook 365
- For Windows, you can switch to a black and white theme in Outlook by following these steps:
- For Outlook 365’s File menu, press.
- To access your Office Account, select the button.
- Select “Black” from the “Office Theme” drop-down menu. This option activates Outlook 365’s dark theme.
- After making your selection, click OK to commit the changes.
A Web-Based Guide to Activating the Dark Theme in Outlook 365
Unlike the other platforms discussed here, Outlook 365 on the web offers not one but two options for switching to a dark theme. You may choose either one without any effort, it just comes down to personal preference or which one you happen to remember at the time. These are the measures you should do if you choose the first alternative:
- You may access Outlook 365 from any computer with an internet connection and an appropriate web browser.
- Pick the gear-shaped Settings menu option.
- To activate Dark Mode, simply move the slider to the On position.
- Another approach is as follows:
- Go to Outlook 365 on your browser and sign in.
- To see, you need to click View.
- Select Preferences.
- In the drop-down menu, select General.
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A Step-By-Step Guide to Activating the Night Mode in Outlook 365 for I Os
A Dark theme is available for both the iPhone and Outlook for iPhone. Steps to configure Outlook for use with it are as follows.
- Open Outlook on your computer.
- In the top left, click the account symbol to access your profile.
- Select the settings cog by tapping it.
- Make an Appearance.
- Click the Dark button to immediately activate the Night Mode.
If you have your iPhone set to automatically activate and deactivate Dark Mode based on your location, you can also have Outlook switch between Light and Dark modes on your iPhone automatically by tapping System.
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Outlook 365: How To Apply the Night Mode on A Mac

- If you have a Mac and want to use the Dark theme in Outlook, you can do so by completing the following.
- Start by selecting Outlook from the menu in Outlook 365.Pick the Options menu.
- The General tab can be found in the Preferences window.
- In the Appearance menu, select Dark to immediately activate Dark Mode.
If your Mac is set to automatically toggle Dark Mode on and off at certain times of day, you may have Outlook switch between Light and Dark mode with the push of a button by selecting System.