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As colorfulness, chroma, and saturation are defined as attributes of perception, they can not be physically measured as such, but they can be quantified in relation to psychometric scales intended to be perceptually even—for example, the chroma scales of the Munsell system. While the chroma and lightness of an object are its colorfulness and ...
National colours are frequently part of a country's set of national symbols.Many states and nations have formally adopted a set of colours as their official "national colours" while others have de facto national colours that have become well known through popular use.
In the Islamic world, blue was of secondary importance to green, believed to be the favourite color of the Prophet Mohammed. [ 22 ] [ citation needed ] At certain times in Moorish Spain and other parts of the Islamic world, blue was the color worn by Christians and Jews, because only Muslims were allowed to wear white and green. [ 23 ]
One example in which different conceptualizations of color may lead to confusion is the coloring of upward or downward trends in financial markets; whereas in most of the world green or blue is used to denote an upward trend and red is used to denote a downward trend, in mainland China, Japan, South Korea, and Taiwan, the reverse is true. This ...
By contrast, in the Islamic world, blue was of secondary to green, believed to be the favourite colour of the Prophet Mohammed. At certain times in Moorish Spain and other parts of the Islamic world, blue was the colour worn by Christians and Jews, because only Muslims were allowed to wear white and green.
As an example the colour red symbolises left-wing ideologies in many countries (leading to such terms as "Red Army" and "Red Scare"), while the colour blue is often used for conservatism, the colour yellow is most commonly associated with liberalism and right-libertarianism, and Green politics is named after the ideology's political colour.
In 2021, the BBC launched a “Kindness Test,” which more than 60,000 people from 144 countries joined, making it the world’s largest psychological study on the topic.
The brilliant iridescent colors of the peacock's tail feathers are created by structural coloration, as first noted by Isaac Newton and Robert Hooke.. Structural coloration in animals, and a few plants, is the production of colour by microscopically structured surfaces fine enough to interfere with visible light instead of pigments, although some structural coloration occurs in combination ...