Mar 9, 2026

How to Color Code Google Calendar (Events, Calendars, and Categories)

A well color-coded Google Calendar tells you what kind of day you’re having before you read a single event title. Work meetings in blue, personal commitments in green, deadlines in red — your schedule becomes legible at a glance. Here’s how to set it up.

1. Change the Color of an Entire Calendar

The simplest way to color code is by calendar. All events on a calendar inherit its color unless you override individual events.

On desktop:

In the left sidebar under My calendars or Other calendars, hover over the calendar you want to change.
Click the three-dot menu (⋮) that appears.
Select a color from the preset swatches, or click the pencil icon to enter a custom hex code (on Workspace accounts).
The change applies immediately to all events on that calendar.

On mobile:

Tap the hamburger menu (☰) → scroll to the calendar.
Tap the calendar name → Calendar settings.
Tap Calendar color and choose a color.

This is the fastest way to visually separate work and personal calendars, or to distinguish between different project calendars.

2. Change the Color of a Single Event

Individual events can override the calendar color — useful for flagging something urgent or categorizing within a calendar.

On desktop:

Click the event to open the preview, then click the edit (pencil) icon.
In the event editor, look for the colored circle next to the event title.
Click it to open the color picker.
Select a color. The event will use this color instead of the calendar default.

On mobile:

Tap the event → Edit (pencil icon).
Tap the colored circle next to the event title.
Choose a color.

3. Build a Color System That Actually Works

Ad-hoc coloring creates visual noise. A consistent system makes colors meaningful. Some approaches that work:

By life area:

Blue → work meetings
Green → personal / family
Purple → health (gym, appointments)
Yellow → social
Red → deadlines or important events

By energy type:

Dark blue → deep work / focus blocks
Light blue → admin / emails
Orange → creative work
Gray → commute / logistics

By urgency:

Red → urgent, can’t move
Yellow → flexible but important
Default (calendar color) → normal

Pick one system and stick to it. The value comes from consistency, not from the specific colors chosen.

4. Use Separate Calendars for Each Category

Rather than manually coloring every event, create separate calendars per category and assign each a color. Then just put new events on the right calendar.

In the left sidebar, click + next to Other calendars → Create new calendar.
Name it (e.g., “Work,” “Personal,” “Health”).
Set a color.
When creating events, choose the correct calendar from the dropdown in the event editor.

This scales better than per-event coloring. New events automatically get the right color without extra clicks.

5. Color Code Recurring Events Differently From One-Offs

If you have a recurring meeting that occasionally gets rescheduled or changes character, you can color individual instances without affecting the whole series:

Click the specific occurrence of the event.
Click the edit icon → choose This event (not “All events”).
Change the color on that instance only.

The rest of the series keeps its original color.

6. Make Your Color System Visible to Others

When you share a calendar with someone, they see events at the calendar color — not at any per-event colors you’ve assigned. Per-event colors are personal view preferences.

If you want shared visibility of categories, use separate calendars with distinct colors rather than per-event overrides.

7. Reduce Visual Clutter as You Scale

Once you have more than five or six calendars, the sidebar becomes messy and the calendar grid hard to read. Some ways to manage this:

Hide calendars you don’t need daily. Uncheck them in the sidebar to remove events from view without deleting anything.
Use similar colors for related calendars. Two shades of blue for “Work Meetings” and “Work Projects” keeps them visually grouped.
Archive old project calendars. When a project ends, hide the calendar rather than scrolling past it daily.

Carly can help you manage a cluttered multi-calendar setup by surfacing only what’s relevant to your day without requiring you to manually toggle calendars on and off.

Common Color Coding Mistakes

Too many colors. If every event is a different color, nothing stands out. Limit yourself to 5–7 distinct categories.
Inconsistent application. A color system only works if you apply it every time. Create a simple rule and follow it.
Colors that clash. Google’s default palette has some colors (like banana yellow) that are hard to read. Test your choices in week view, which has smaller event blocks.

More on Google Calendar: How to manage multiple Google Calendars · How to set up a shared team calendar · Best AI calendar assistants