they didn't

"FIFA regulations state that each team will have two different and contrasting colours -- one predominantly dark and one light for its official and reserve kit -- designed to help the referee clarify tackles and deflections.

And while the sports governing body didn't ask teams to wear one colour some of the suppliers followed the rule closely."

User Posted Link

also:

"It isn?t known if Puma and Nike will opt for monochrome kits. Hosts Brazil wear the latter, and it?s predicted the American label will soften their blue shorts so the strip slots into the ?light? category."

User Posted Link

which also says:

"The thought of England in one colour isn?t as shocking as you might think. At the last World Cup the Three Lions first choice outfit was all white, and Fabio Capello?s men wore all red twice. The Euro 2012 home strip was also completely white."

Posted By: Ralf Scrampton, Jun 17, 21:20:47