ACF Color picker always suggest 8 colors (below the gradient selector) to the users.
That would be nice to be able to defined those 8 suggested colors in the field options.
Usually, the client will always choose among the popular colors of the website, but may sometime need something unique.
So a basic select box won’t cut it, and a text field with color HEX is not intuitive enough.
So allowing him to easily pick one of those most used colors if needed would be a great help.