How To Outlook Dark Mode – Enable Outlook Dark Theme

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Reading Outlook emails late at night strains your eyes, yet the dark mode setting seems to be hiding somewhere. If you have been searching for how to outlook dark mode without success, you are not alone. Microsoft hides this feature in different places depending on your device and version. This guide will show you exactly where to find it and how to enable it step by step.

Dark mode reduces blue light and makes reading easier in low light. It also saves battery on OLED screens. Let us get straight to the point and fix that bright white glare.

How To Outlook Dark Mode

Before we dive into the steps, you need to know that Outlook has two main versions: the desktop app (part of Microsoft 365) and the web version (Outlook.com). Each version has its own settings. We will cover both, plus the mobile apps.

Enable Dark Mode In Outlook Desktop App (Windows)

The desktop app is the most common version for work and personal use. Here is how to switch it to dark mode.

  1. Open Outlook on your Windows computer.
  2. Click on File in the top-left corner.
  3. Select Office Account from the left menu (sometimes labeled as Account).
  4. Look for the Office Theme dropdown menu.
  5. Choose Black or Dark Gray from the list.
  6. Click OK to apply the change.

That is it. The entire Outlook interface, including the ribbon, folders, and reading pane, will turn dark. However, the email body may still show as white. We will fix that next.

Make Email Body Dark In Desktop App

By default, Outlook only changes the background of the app window. The actual email content stays white. To fix this, you need to enable a separate setting.

  1. Go to File > Options.
  2. Click on Mail in the left sidebar.
  3. Scroll down to the Message format section.
  4. Check the box that says Use dark mode for email messages.
  5. Also check Use dark mode for email signatures if you want signatures to match.
  6. Click OK.

Now your emails will appear with a dark background and light text. This works for reading and composing messages. Some images may look inverted, but you can adjust that in the same settings.

Enable Dark Mode In Outlook Web Version

If you use Outlook in a browser, the process is different. The web version is lighter and faster, but the dark mode setting is buried in the settings menu.

  1. Go to Outlook.com and sign in.
  2. Click the gear icon (Settings) in the top-right corner.
  3. Select View all Outlook settings at the bottom of the panel.
  4. Click on General in the left menu.
  5. Choose Appearance from the list.
  6. Under Theme, select Dark.
  7. Click Save at the top.

The web version will immediately switch to dark mode. Unlike the desktop app, the email body also turns dark automatically. No extra steps needed.

Quick Toggle For Web Version

If you want to switch between light and dark mode quickly, use the theme toggle in the settings panel. You can also set it to change based on your system theme.

  • Go to Settings > General > Appearance.
  • Choose Use system setting to match your Windows or Mac theme.
  • This way, Outlook dark mode turns on automatically when your device is in dark mode.

Enable Dark Mode In Outlook Mobile App (IOS And Android)

Reading emails on your phone in bed? The mobile app has a dedicated dark mode setting. It is easy to find.

On iPhone Or iPad

  1. Open the Outlook app.
  2. Tap your profile picture or initials in the top-left corner.
  3. Tap the gear icon (Settings) at the bottom.
  4. Select Appearance.
  5. Choose Dark.
  6. You can also select System default to follow your device settings.

On Android

  1. Open the Outlook app.
  2. Tap your profile picture in the top-left corner.
  3. Tap the gear icon.
  4. Select Appearance.
  5. Choose Dark or System default.

Both versions work the same way. The entire app, including emails, will turn dark. This is one of the best features for night time reading.

Enable Dark Mode In Outlook For Mac

Mac users have a slightly different interface. Outlook for Mac integrates with the system-wide dark mode.

  1. Open Outlook on your Mac.
  2. Click on Outlook in the top menu bar.
  3. Select Preferences.
  4. Click on General.
  5. Under Appearance, choose Dark.
  6. Alternatively, select Use system setting to match your Mac theme.

If you have already enabled dark mode on your Mac, Outlook will follow that setting automatically. This is the simplest method for Mac users.

Fix Email Body In Mac Version

Similar to Windows, the Mac version may keep email content white. To change this:

  1. Go to Outlook > Preferences.
  2. Click on Reading.
  3. Check Use dark mode for messages.
  4. Close the preferences window.

Now your emails will have a dark background. This setting applies to all accounts in Outlook for Mac.

Troubleshooting Common Dark Mode Issues

Sometimes dark mode does not work as expected. Here are common problems and fixes.

Dark Mode Not Applying To All Emails

If some emails still show white, it is likely because the sender used inline styles or images. Outlook cannot override these completely. You can try:

  • Switch to Plain text format for reading (File > Options > Mail > Read as plain text).
  • Use the Dark mode for email messages setting again to ensure it is enabled.
  • Restart Outlook after changing settings.

Dark Mode Makes Images Look Weird

Images in emails may appear inverted or washed out in dark mode. To fix this:

  • Go to File > Options > Mail.
  • Uncheck Optimize images for dark mode if available.
  • Or use the web version, which handles images better.

Dark Mode Not Available In Your Version

Older versions of Outlook (like 2016 or 2019) may not have dark mode. You can:

  • Update to the latest Microsoft 365 version.
  • Use the web version instead.
  • Try a third-party add-in like Dark Mode for Outlook.

How To Switch Between Light And Dark Mode Quickly

If you need to toggle between modes often, use these shortcuts.

  • Desktop app: Go to File > Office Account > Office Theme. No keyboard shortcut exists.
  • Web version: Use the gear icon and toggle theme. No shortcut, but it is fast.
  • Mobile app: Swipe down and tap your profile picture, then tap Appearance.
  • Mac: Use system dark mode toggle in Control Center.

For the desktop app, you can create a macro to switch themes, but that requires coding knowledge. Most users find the manual method quick enough.

Benefits Of Using Dark Mode In Outlook

Why bother with dark mode? Here are real benefits.

  • Reduces eye strain in low light conditions.
  • Saves battery on OLED and AMOLED screens.
  • Improves focus by reducing glare and distractions.
  • Looks modern and matches other dark mode apps.
  • Helps with migraines or light sensitivity.

Many users report less fatigue after switching to dark mode. It is worth trying for a few days.

Dark Mode Vs. High Contrast Mode

Some users confuse dark mode with high contrast mode. They are different.

  • Dark mode changes the background to dark gray or black, with light text.
  • High contrast mode uses extreme colors (like yellow on black) for accessibility.

If you need accessibility features, use Windows High Contrast mode instead. Outlook will adapt to it automatically.

How To Reset Outlook Dark Mode

If dark mode stops working or looks wrong, reset it.

  1. Go to File > Options > General.
  2. Under Personalize your copy of Microsoft Office, set Office Theme to Colorful.
  3. Click OK.
  4. Then repeat the steps to set it back to Black or Dark Gray.

This refreshes the settings. For the web version, clear your browser cache and reload Outlook.

Frequently Asked Questions

How do I enable dark mode in Outlook for Windows 11?

The steps are the same as for Windows 10. Go to File > Office Account > Office Theme > Black. You can also enable system-wide dark mode in Windows 11 settings, and Outlook will follow if you choose “Use system setting” in Office Theme.

Can I use dark mode in Outlook without changing my Windows theme?

Yes. Outlook has its own theme setting independent of Windows. You can set Outlook to dark mode while keeping Windows in light mode.

Why is my Outlook dark mode not working on iPhone?

Make sure you have updated the Outlook app to the latest version. Go to Settings > Appearance and select Dark. If it still does not work, restart the app or reinstall it.

Does dark mode affect how my emails look to recipients?

No. Dark mode only changes how emails appear on your screen. Recipients see the email in their own theme, unless they also use dark mode.

How to turn off dark mode in Outlook web?

Go to Settings > General > Appearance > Theme > Light. Click Save. You can also toggle it off quickly from the settings panel.

Final Tips For Using Outlook Dark Mode

Dark mode is not perfect for everyone. Some users find it harder to read long emails in dark mode. If that is you, try the “Dark Gray” theme instead of pure black. It reduces contrast and is easier on the eyes.

Also, remember that dark mode in Outlook desktop app does not affect the calendar or tasks fully. Those sections may still show some white elements. Microsoft is slowly updating all parts of the app.

If you use multiple devices, set dark mode on each one separately. There is no sync for theme settings across devices. But once you set it, it stays until you change it.

One more thing: if you use Outlook with a work or school account, your IT admin may disable theme changes. In that case, you cannot enable dark mode. Contact your IT department for help.

That covers everything you need to know about how to outlook dark mode. Follow the steps for your device, and you will have a darker, more comfortable email experience in minutes. No more squinting at bright screens late at night.

Try it today and see the difference. Your eyes will thank you.