They wear orange during home games.
Orange
The navy blue is the primary home color and the old coach didn't care must for the orange alternate jersey. However, due to overwhelming fan support of the orange jersey, the orange jersey and navy blue jersey will switch in the 2012 season. Thus the orange jersey will be the primary home color, and the navy blue jersey will become the alternate jersey.
Which uniform set they specifically wore for each game would vary greatly, as the home team gets to choose their jersey color first.The Broncos wear either their home, away or alternate (orange) jerseys to most games aside from special events (such as the throwback games to commemorate the AFL).
white jersey
I love the Denver Broncos but there nickname is the "Donkeys" :)
The Broncos original uniforms had white and yellow jerseys with brown pants and a brown helmet. That changed in 1962 to white pants, orange helmets, and orange and white jerseys. Current team pants are white with blue or white or orange jerseys and a blue and orange helmet.
The Orange Crush.
Orange and blue, with white accents.
#22
$500
The broncos won
The 3-4 defense the Broncos used in the 70s was nicknamed Orange Crush.