well yes and no it started off white then turned black
White
The plain white background on the Olympic flag symbolize peace among the nations
its a netural colour and means peace
It means peace among the nations of the world.
The colours which ARE on the Olympic flag are Red Blue Green Yellow and Black on a White background. Any other colours than these are not on the Olympic flag.
White See Related Link, just below the following three ads:
The greek flag has two colours: blue and white. It has white and blue stripes and a white cross at the upper left corner.
The following is quoted directly from the IOC: "The five rings represent the five continents. They are interlaced to show the universality of Olympism and the meeting of the athletes of the whole world during the Olympic Games. On the Olympic flag, the rings appear on a white background. This flag translates the idea of the universality of the Olympic Movement. At least one of the colors of the rings, including the white background, can be found on the flag of every nation in the world."Read more: What_do_the_Olympic_rings_represent
The flag of Switzerland has a red background and white cross (+). The flag of Scotland, the Saltire, has a dark blue background and a white cross (X). The flag of Denmark has a red background and white cross (+).
Nova Scotia does, along with a red crest in the center... It is not the flag of Finland, which has a blue cross on white background, but not a diagonal blue cross, as erroneoulsly answered here previously. Neither is it the flag of Scotland, which is diagonal white cross on blue background.
The Swiss Flag is a white cross on a white ground. No Switzerland's flag is a white cross with a red background.
The flag with a blue cross on a white background belongs to Finland.