Political colour most commonly associated with liberalism. It is the official colour of the Alliance of Liberals and Democrats for Europe (ALDE), as well as being the colour of liberal parties in Germany, Romania, Estonia and the United Kingdom (the Liberal Democrats). Yellow or gold, usually together with blue or purple, is also often used to represent right-libertarianism and classical liberalism. Notable national political colour schemes include: Political colour Political colours are colours used to represent a political party, either officially or unofficially. Parties in different countries with similar ideologies sometimes use similar colours. For example, the colour red symbolises left-wing ideologies
George Palmer (colour theorist) the complementary nature of the successive contrast effect by stating that it is due to fatiguing of one or two of the light sensor types, an explanation that continues to be accepted as valid, as does his conjecture that the different kinds of sensors take different time intervals to recover upon exposure to strong light. George Palmer (colour theorist) George Palmer (ca. 1746 – March 3, 1826), also known as George Giros de Gentilly, named Palmer) was an English dye chemist, colour theorist, inventor, and soldier. He is best known for his conjectures about colour vision and colour blindness. According