One of the things that bugged me almost as much as the uniform colours was the fact that Danse is always dirty. Always. And using the showlooksmenu command on him makes him smooth as a baby's butt. If it works at all.

I was finally able to figure out which texture set the poor guy is using, and clean it up while retaining his scars, wrinkles and slight discolorations around eyes, cheeks and forehead.

Seems that it's an npc-available texture, rather than one exclusive to Danse, so don't be suprised if some of the generic npc's are suddenly clean.

                                                                                                                            

How to install:

Unpack the archive's content into Fallout 4 directory

How to uninstall:

Remove related files from your Data folder.

Or just use Vortex or MO2. Make your life easier.