The proportions which are used in the United Nations flag are 2:3 and 3:5.
The world map within the olive branches signifies the everlasting peace and security which this organization stands for. The flag code of the United Nations restricts arbitrary usage of this flag.
Location: Its headquarter is in New York City, the UN also has offices in Geneva, Vienna, and other cities.
National Flag: The background of the flag of United Nation is light blue is color with a white colored map of the world within a wreath of olive leaves on it placed at the center.
Flag Ratio: 2:3