What happened?

Description

If a matrix block has a color field on it, the custom color option will not work if the matrix block is fresh and unsaved.
Saving the entry makes the custom color work again.

Steps to reproduce

1. Add a color field to a matrix block
2. Set the matrix field to "inline editable"
3. New block, try to pick "custom color" no selector for color comes up.
4. Save entry, try again, works.

Craft CMS version

5.6.1