Netherlands
The Netherlands flag we know today has red, blue, and white, so why is the color orange always credited to the country? Well, it makes sense because the Dutch are known for their love of this bright hue, which is associated with the members of the royal family of the House of Orange.
This is also why athletes don bold orange kits during sporting events, including the World Cup. Unfortunately, there was hearsay that the players would soon exchange this hue for blue, but it would be difficult to recognize them on the field if that happened because many other national teams also have blue uniforms.