The Olympic symbol consists of five interlaced rings of equal dimensions, used alone, in one or in five different colours, which are, from left to right, blue, yellow, black, green and red. The Olympic symbol (the Olympic rings) expresses the activity of the Olympic Movement and represents the union of the five continents and the meeting of athletes from throughout the world at the Olympic Games.
But watch out, it is wrong to say that each of the colours corresponds to a certain continent! In fact, when Pierre de Coubertin created the Rings in 1913, the five colours combined with the white background represented the colours of the flags of all nations at that time, without exception.