Calendar Color

Customize your Google Calendar colors with ease. Choose from Google's palette or create your own custom colors.

As of June 2026, Calendar Color has 10,000 users and a 4.10/5 rating from 50 reviews in the Productivity category.

Usersno change0%
10.0K
10,000
Ratingup 0.5 percent+0.5%
4.10
50 reviews
Reviewsup 4.2 percent+4.2%
50
Version
0.2.4
Manifest V3

History

3 snapshots

Tracking since Apr 16, 2026.

10.1K10.0K9.9KApr 16, 2026Jun 10, 2026
View as table
DateUsersRatingReviewsVersion
Apr 16, 202610.0K4.08480.2.4
Apr 26, 202610.0K4.08480.2.4
May 18, 202610.0K4.10490.2.4
Now10.0K4.10500.2.4

Permissions & access

Permissions
storage
Host access
None declared

Screenshots

Calendar Color screenshot 1Calendar Color screenshot 2Calendar Color screenshot 3Calendar Color screenshot 4Calendar Color screenshot 5

About

Now with a built-in Focus Timer to boost productivity during calendar events.

🌟✨ KEY FEATURES ✨🌟

🎨 Google Calendar Color Categorization: Assign categories to Google Calendar's existing color palette, making it easier to remember the purpose of each color. For example, red could represent "Critical," blue "Learning," and green "Finances."

🖌️ Custom Color Groups: Add custom color groups that appear in the color picker on calendar events. Each color in the group can be customized with a unique color and label.

⏱️ Focus Timer: Start a productivity timer directly from any calendar event. Track your focus time, get completion sounds, and build better work habits.

🔍 Eyedropper Tool: Pick any color from the screen to use in your custom palette.

🔄 Reset and Disable Options: Clear all custom colors or disable them to use only categorization with Google's default colors.

🧩 Templates for Easy Setup: Pre-made templates including Time Blocking, Priority, Energy Levels, Schedule Type, Projects, Focus Mode, Mood, and Value.

⚠️🚨 IMPORTANT NOTES 🚨⚠️

🛠️ Dependency on Google Calendar Layout: This extension relies on Google Calendar's current layout. Changes by Google may temporarily break features. If this happens, reach out via email: [email protected] or visit: https://humanquest.net

💻 Desktop-Only: Chrome extensions don't work on mobile. For mobile, use Google's core colors.

🖌️ Changes Apply to Existing Events Only: New events need to be saved first before colors can be applied.

🙏 Free Extension: This is completely free. Please reach out with issues rather than leaving a negative review.

📋 VERSION UPDATES 📋

🆕 v0.2.4 - Gmail Sidebar Support
• Custom colors now appear in Gmail's sidebar calendar — click the Calendar icon in Gmail and your event colors should show up

v0.2.3 - Storage & Color Reliability
• Fixed custom colors reverting on page refresh — The local storage fallback now correctly reads chunked data, so your colors persist even when sync storage is temporarily unavailable.
• Fixed potential infinite loop in storage sync — When Chrome's sync state changes (e.g. signing in/out), the extension no longer risks getting stuck in a recursive loop.
• Fixed event viewer dialog coloring — The event detail popup no longer gets incorrectly painted with the event's custom color; only the color dot indicator is updated.

v0.2.2 - Storage Health Warnings
• Storage Health Warnings - Get notified when storage is running low, blocked, or when using incognito mode. Helpful tooltip explains what's happening and how to fix it.
• Focus History now syncs across devices - Your timer sessions are now stored in synced storage, so your focus history follows you across computers. Last 50 sessions are kept.
• Expandable Focus History - Click to see all your tracked events, not just the top 5.
• Clear History confirmation - Prevents accidental deletion with a two-step confirmation.

v0.2.1 - Focus Timer
⏱️ NEW: Built-in productivity timer for calendar events
• Start a timer from any event's right-click menu
• Timer adapts to remaining event time, full duration, or custom minutes
• 7 pleasant completion sounds
• Preview sounds and adjust volume in settings
• Track focus sessions with history and statistics
• Optional break suggestions after completing sessions
• Focus mode dimming to reduce distractions
• Beautiful floating widget with event color theming

v0.1.0 - Task Color Support
✨ Customize colors for Google Tasks
• Right-click any task and choose from your custom color palette
• Works with timed tasks. DOES NOT WORK for all-day tasks since Google Calendar does not have colors for these

v0.0.9 - Bug Fix
• Fixed: Custom colors now apply to ALL weeks of multi-day events in Month view

v0.0.8 - Stability & Sync
• Improved stability - addresses issues with lost colors and stuck dialogs
• Better handling of Chrome sync on/off/changing states  
• Support for larger collections of colored events (smart chunking)
• Enhanced cross-device synchronization reliability

Technical

Version
0.2.4
Manifest
V3
Size
1.01MiB
Min Chrome
88
Languages
1
Featured
Yes

Metadata

ID
fadonemflmjiddpmnpehmiemedpjdgml
Developer ID
u5fee6a4a9d17dd5a98f10f00d58c5efa
Developer Email
[email protected]
Created
Nov 15, 2024
Last Updated (Store)
Mar 2, 2026
Last Scraped
Jun 10, 2026
Website
calendarcolor.com

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Data sourced from the Chrome Web Store · last verified Jun 10, 2026.