Man City won the Premier League for the season 20/21. Thus they are allowed to wear the gold champs badge for the season 20/21 as the only team in the Premier League. The remaining 19 clubs will wear the standard blue Premier League badge. Man City will be the stand outs wearing the golden ornamentation.
The badge goes to the right arm sleeve. To the left arm sleeve there is a sponsor logo.
Skyblue and white with gold as contrast. That works reasonably well I would say.