Custom color picker for tags
When you create color-coded tags in application sections and plan tasks, you can use the color picker to apply a custom color to your tag.
In previous product versions, only a limited number of colors were available for tags.
To apply a custom color when creating a tag, click Custom color picker on the Create new tag dialog box.

The color picker that is specific to your browser is displayed. The following image is from Firefox.

In the color picker, specify the color that you want to apply to the tag.

For more information, see Add sections and contributors to an application and Add tasks to a plan and assign contributors and approvers.