Comparison of height and width of 5 : 4.
There are the colors: gold, red, blue and green.
The meaning of each symbol:

Top left, yellow gold Eagle is a symbol of the State.
Top right, in the city of Bogor, Bogor Palace lies stated by the court paintings Silver Color.
Lower left, the city of Bogor, can not be removed from the shadow of Mount Salak mountain symbols depicted in the top four.
Bogor City is a heritage of the Kingdom of Pajajaran, this is illustrated by the form of Kujang.

( sources is taken from http://kotabogor.go.id )