The colour palette tool is designed to:
To use the colour palette tool, click on the style editor in the header of your admin area.
Global settings will slide out and you'll see different colour palettes.
The top option in the screenshot below is your sites colour palette.
The options below that are available colour palettes which you can apply and will give you a live view of the changes to your site when applied.
You can edit a colour on the colour palette to one of your own choosing. This will:
When you open a section, you will see options for your colour palette. This allows you to quickly and easily apply your colour palette to that section.
Try using searching below: