Sydney FC more like Melbourne Victory with that kit.
This is the first time Sydney have worn navy shirts, yeah? They just had navy clash socks in the Cup Final, and you can see why they wanted their Sky Blue shirts then. Even though there is the sky trimming, Victory have total ownership of that look -- in a comp of just 10 teams, you shouldn't be wearing the kit of a major rival at any stage.
So this is the knock on effect of the City buy-in we knew was going to happen, diluting the existing brands; and it's going to need a better solution when Melbourne go with the 'City Blue' kits next season. Sydney will need it twice a season, and it will probably feature in a few finals to come. White won't be enough contrast, orange is all but dead, and the usual 'third kit' colours (black, grey, fluro) are naff.
If MC go with white shorts, Sydney could go with sky shorts with that navy top -- basically an inverse of the home setup.
Is Argentina's traditional away kit, royal blue, worth a shout? The monochrome version in 2010 looked nice. At least until South Melbourne get promoted...