Change your Slack theme
To change the colour of your workspace, choose a new theme or create your own custom theme.
Tip: If you’d like a darker look for Slack, learn how to turn on dark mode from your preferences.
Choose a new theme
If you use multiple workspaces, try selecting a different theme for each one to help you quickly tell them apart. Your new theme will appear whenever you open that workspace on any device or in your browser.
- From your desktop, click on your profile picture in the top right.
- Select Preferences.
- Click Themes.
- Below Colours, select a theme.
Note: When you have dark mode turned on, the existing options for sidebar themes will look different (and darker) than they do in light mode. Custom themes will look the same in light and dark mode.
Tip: In your Themes preferences, you'll find accessible themes that some people with colour-blindness have found helpful.
Customise your theme
- From your desktop, click on your profile picture in the top right.
- Select Preferences.
- Click Themes.
- Below Colours, click Create a custom theme. Enter any six-digit HTML colour value, or click a colour swatch to choose from the colour picker.
Share a custom Slack theme
Your custom theme will only be visible to you, but you can share it with other colleagues by clicking the Copy button below Copy and paste these values to share your custom theme with others. Paste your theme into any channel or direct message, and members can click the Switch sidebar theme button from their desktop to start using it.
Tip: When you paste any six-digit colour value into Slack, we’ll display a small swatch for each colour. 🎨✨
To change the colour of your workspace, choose a new theme or create your own custom theme.
Tip: If you’d like a darker look for Slack, you can turn on Dark mode from your preferences.
Choose a new theme
If you use multiple workspaces, try selecting a different theme for each one to help you quickly tell them apart. Your new theme will appear whenever you open that workspace or Enterprise Grid organisation on any device or in your browser.
- From your desktop, click your profile picture in the sidebar.
- Select Preferences from the menu.
- Click Themes.
- Below Theme colours, choose a theme.
Note: Some people with colour blindness have found our Vision assistive themes helpful. We’re always working to make Slack more accessible and listening to feedback about how we can improve themes.
Customise your theme
Set custom colours
Once you’ve chosen a theme, you can choose specific colours for different areas of Slack if you’d like to.
- From your desktop, click your profile picture in the sidebar.
- Select Preferences from the menu.
- Click Themes.
- Next to Theme colours, click Customise. Select a colour swatch to choose a colour for each theme element, then click Save.
Import a custom theme
Slack themes are comprised of a series of six-digit hex codes, e.g. #4A154B. To further customise your theme, you can create a series of ten hex codes or import your legacy theme.
- From your desktop, click your profile picture in the sidebar.
- Select Preferences from the menu.
- Click Themes.
- Next to Theme colours, click Import theme.
- Paste your hex codes into the text box (make sure to separate each code with a comma) or click Paste your legacy theme colours, then click Apply.
Note: Legacy theme colours are available only for the theme that you last used before Slack was updated to the new design. For any other colours, you’ll need to know the hex codes that you’d like to use while we work to enhance theme customisation options.
Set themes preferences
There are two other themes preferences that you can set:
-
Window gradient
Decide whether your windows are a solid colour or have a gradient. -
Darker sidebars
Some themes’ default brightness will automatically darken the sidebar. If your theme doesn’t support this by default, you can opt for a darker sidebar.
- From your desktop, click on your profile picture in the top right.
- Select Preferences from the menu.
- Click Themes.
- Next to Theme colours, click Customise.
- Tick the box next to the preference(s) that you’d like to set, then click Save.
Tip: On certain Mac devices, you can turn window transparency off from the Accessibility section of your preferences.