The Game Jerseys, Logos, Mock Ups, Photos ANYTHING

[Matt_CBY]

If Brazil wear their predominantly yellow with blue shorts, Australia in dark green would be fine.

 

[The Great Dane]

If Brazil wear their predominantly yellow with blue shorts, Australia in dark green would be fine.

Now do South Africa, Jamaica, Cameroon, etc, without multiple of them clashing with each other or a bunch of other nations that aren't green/yellow but near enough to also clash if you're not careful like Colombia, Nigeria, Sweden, Ivory Coast, etc, all whilst taking colour blindness and other vision impairments and broadcast and technological restraints into account as much as possible.

The reality is you can't, something has to give, and it's much simpler and more effective to have a dark and a light kit that contrast.