Slack Logo with Dark Background

Months after rolling out to Android, iPhone, and iPad, Slack has brought dark mode to its desktop and web apps on Windows, macOS, and Linux. The theme is a mix of black and gray with white text, making it easy to read throughout the workday.

At the time of writing, Slack states that you must manually enable dark mode. In a future update, the service should be able to automatically switch between light and dark mode based on your operating system’s settings.

Note: Dark mode is going to remain device-specific. This means that if you enable dark mode on your smartphone, dark mode on your desktop won’t automatically turn on, or vice versa.

To get started, open the Slack desktop app or visit your workspace on the web. Next, click on your workspace’s name found at the top of the left sidebar.

Select “Preferences” located in the top part of the pop-up menu.

On the next screen, click on “Themes” and then select “Dark.” Doing so will invert most of the colors, making the light and white colors black, and the dark and black colors white.

Note: For reasons unknown, some users are reporting that the “Themes” option is hidden within the “Sidebar” menu on their desktop and web apps. If you aren’t immediately seeing the “Themes” menu option, check for it within “Sidebar.”

With dark mode now enabled, you can further customize Slack’s sidebar theme. The built-in color options should be available directly under the dark mode section.

Slack for Desktop Customize Sidebar Theme

Dark mode won’t necessarily prolong your battery life if you’re working from a laptop, but it looks better than a bunch of bright white pixels if you ask us.

RELATED: Dark Mode Isn’t Better For You, But We Love It Anyway

Profile Photo for Justin Duino Justin Duino
Justin Duino is the Reviews Director at How-To Geek (and LifeSavvy Media as a whole). He has spent the last decade writing about Android, smartphones, and other mobile technology. In addition to his written work, he has also been a regular guest commentator on CBS News and BBC World News and Radio to discuss current events in the technology industry.
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