Calendar Problems

How to Color-Code a SharePoint Online Calendar by Choice Column

Aamir Naveed Akram Oct 12, 2026 868 views

Question details

The user wants to automatically change the color of calendar events based on a specific Choice column selection in SharePoint Online.

How to Color-Code a SharePoint Online Calendar by Choice Column

Product: Microsoft SharePoint Online
Device & OS: not provided
Scenario: Attempting to visually organize calendar events by assigning unique colors to different categories using conditional formatting or overlays.
Observed behavior: Standard conditional formatting based on Choice columns does not change event colors in the modern SharePoint Online calendar web part, as older overlay instructions apply only to the classic SharePoint experience.

Before you start

Verify whether your site is currently using the modern SharePoint Online experience or the classic SharePoint view, as native calendar color-coding methods differ significantly between the two.

Solution 1Recommended

Use Calendar Overlays in Classic SharePoint View

This traditional method uses filtered views and calendar overlays to assign unique colors to different choice categories.

The classic SharePoint calendar supports multiple overlays, allowing you to stack filtered views of the same calendar on top of each other, assigning a distinct color to each view.

Create Filtered Views

Navigate to your calendar in the classic view. Go to the 'Calendar' tab in the ribbon, select 'Create View', and create a filtered view for each option in your Choice column.

Open Calendar Overlays

Return to the main calendar view. Click the 'Calendar' tab in the ribbon and select 'Calendars Overlay'.

Add a New Overlay

Click 'New Calendar'. Give the overlay a name (matching your Choice category), assign a specific color from the dropdown list, and link it to the corresponding filtered view you just created.

Apply and Save

Click 'OK' to save the overlay. Repeat this process for each category to display fully color-coded events on your primary calendar.

Use Calendar Overlays in Classic SharePoint View

Modern View Limitation: The calendar overlay feature is exclusive to the classic SharePoint experience and is not natively supported in modern SharePoint Online calendar web parts.

Solution 2

Apply Conditional Formatting to a Modern List View

While the modern calendar grid lacks overlay support, you can format the background and text colors when viewing the calendar as a modern list.

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Frequently Asked Questions

Why doesn't conditional formatting work on my modern SharePoint calendar web part?

The modern SharePoint calendar web part currently lacks the native calendar overlay and complex conditional color-coding features found in classic views. Formatting often only takes effect when the calendar data is viewed as a standard modern list.

Can I switch back to the classic SharePoint calendar view to use overlays?

Yes. You can usually return to the classic experience by clicking 'Return to classic SharePoint' in the bottom left corner of your page, or by having your site administrator configure the list settings to default to the classic experience.

Is there any way to color-code modern calendar web parts?

Natively, color-coding the modern grid view is highly restricted. Many users rely on third-party calendar web parts available in the SharePoint store or utilize Microsoft Power Apps and custom JSON formatting to achieve advanced modern styling.

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