Managing Custom Brand Colors in Cal ID
In Cal ID, set primary colors for your booking page so it matches your visual identity — with separate colors for light and dark themes.
- Log in to Cal ID.
- Click the Settings icon in the sidebar.
- Open the Custom Branding tab.
- Scroll to Custom brand colors and switch the toggle ON.

- Light theme: click Brand color (light theme) and enter a hex code or use the picker.

- Dark theme: click Brand color (dark theme) and choose the color for dark mode.

- Click Update to apply.
Tip: pick colors that stay readable in each theme — a darker shade for light mode, a brighter one for dark mode.
- Buttons: primary actions (like "Confirm") use your brand color.
- Highlights: selected dates and active time slots are highlighted in your color.
- Navigation: progress bars and some icons adopt your scheme.


For accessibility, avoid very pale colors (white, light yellow) as your primary — they're hard to read on light backgrounds. Aim for strong contrast so buttons stay easy to see.
Updated on: 04/08/2026
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