Wrong kit!!

Good afternoon,
I have just encountered a really weird situation,
I reffed a game this morning but the away team played in a kit that they were not affiliated with!
Never experienced it before, but what is the law on this?

Going to make two big assumptions here that it was youth or grassroots football (a morning kick-off), and you’re not Level 3.

If there was no colour clash, and the match played without issue, then there’s nothing in Law relating to it. A club’s registered colours is a matter for that competition, and - in theory - a match official could let the secretary know of a potential breach of competition rules, but I’m not seeing an issue as described.

Certainly isn't a law issue, if anything you'd just report it to the league.

NO colour clash, Just get on with it no need to get involved. As referees we don't need to go looking for problems.