Olympic symbols rings are five interlocking rings, coloured blue, yellow, black, green, and red on a white field, known as the "Olympic rings". The symbol was originally designed in 1912 by de Coubertin. He appears to have intended the rings to represent the five continents: Europe, Asia, Africa, Oceania, and America. According to Coubertin, the colours of the rings together with the white of the background included the colours composing every competing nation's flag at the time. Upon its initial introduction, Coubertin stated the following in the August 1912 edition of "Olympique": In his article published in the "Olympic Revue" the official
Road signs in the United Kingdom patch may only be coloured blue or green. Signs indicating a temporary change, such as roadworks or route diversions, are denoted with a yellow background. Usually these signs use a simple black on yellow colour code, more complex signage use the conventional signs superimposed onto a yellow background. In some areas, such as the Dartmoor National Park, additional signs and colours are used to distinguish road conditions. In addition to the national colour schemes, the park also uses white signs with a light blue border and text to denote routes suitable for medium-sized vehicles and white signs with a brown