Google Calendar's default color palette is limited to just 12 preset colors. For busy professionals managing multiple projects, clients, or life areas, this restriction makes visual organization nearly impossible.
The solution: CalendarBoost
CalendarBoost is a browser extension for Chrome and Edge that unlocks unlimited custom colors, gradients, and visual tags for your Google Calendar events.
Step-by-step guide
Step 1: Install CalendarBoost
Visit the Chrome Web Store or Edge Add-ons and click Install.
Step 2: Open Google Calendar
Navigate to calendar.google.com. CalendarBoost integrates seamlessly — you will see new color options when editing events.
Step 3: Apply custom colors
Click any event to edit it. Use the CalendarBoost color picker to choose from an unlimited color palette, or create your own custom hex colors.
Step 4: Organize with tags
Apply visual tags to events for instant recognition — work, personal, health, travel, and more.
Tips for best results
- Create a color system — assign specific colors to project types or clients for instant visual scanning.
- Use tags consistently — consistent tagging helps you filter and find events quickly.
- Set defaults per calendar — save time by setting default colors for each calendar.