How to Use Custom Colors in Google Calendar

Using Google Calendar's native custom colors

The native flow lives inside each event's color options. The exact labels shift as Google updates the interface, but the path is consistent:

1. Open the event's options. Click an event in Google Calendar on the web and open its options menu, or open the event editor.
2. Open the color menu. You'll see the 11 standard event colors — Tomato through Graphite. (The full list with hex values is in every Google Calendar hex code.)
3. Choose the custom color option. Alongside the standard swatches there is an option to define your own color instead of picking a preset.
4. Pick your color and apply it. The event now uses your custom color instead of a built-in one.

This is genuinely useful, and it's the right tool for the occasional one-off: a single event that needs to stand out, or a color that matches something specific. Because it's native, the color is stored by Google and visible to everyone who can see the event, in every browser and app, with nothing to install.

What native custom colors don't do

Native custom colors are one-off choices, not a system. Each pick stands alone, which means:

• No saved palettes. There is no place to store a set of custom colors together. Every custom pick starts from scratch.
• No naming a scheme. You can't call a set of colors "Fall semester" or "Client work" — colors have no identity beyond the swatch.
• No one-click reuse of the same exact hex. To use "your" green on the next event, you re-pick it manually — and re-picking the same value by eye is unreliable, so categories drift into near-matches.
• No palette library. There's nothing to browse for designed, coherent schemes — you're choosing colors one at a time in isolation.
• No syncing a palette as a set. Individual event colors follow the event, but a scheme — the mapping of categories to hex codes — can't be carried to another machine or shared as one unit.

None of this matters if you color one event a month. It matters a lot if colors are how you organize your calendar — consistent categories only work when the same category is the same hex, every time.

Managing palettes with CalPalette

CalPalette is a free Chrome extension that adds the palette layer. After installing it, a "+" button appears next to the default color options on your Google Calendar events. Click it, enter any hex code, and the color is applied — and every color you add is saved to your palette, so reusing the exact same hex on the next event is one click, not a re-pick. The free plan saves up to 4 colors; Pro saves unlimited colors and adds cloud sync across devices plus palette import/export. Not sure which hexes to use? Start from the palette library or the guide to creating a Google Calendar color palette.

One honest caveat: CalPalette applies its colors via CSS in your browser, so they're visible to you and to other CalPalette users. People viewing the calendar without the extension see Google's default colors instead. If a color must be visible to absolutely everyone, use Google's native custom color for that event — the two approaches coexist fine.

Native custom colors vs. CalPalette

They solve different problems — native custom colors handle single events, CalPalette handles palettes as a system:

What a saved palette buys you

Here's the Work–Life Balance palette on a typical week — six custom hex codes, each tied to a category, applied consistently. With native custom colors you'd rebuild each of these by hand on every event; as a saved palette, each one is a single click: