Green Wallpaper

美麗的綠色壁紙HD圖形免費的背景！

Green is the color between blue and yellow on the visible spectrum. In the subtractive color system used in painting and color printing it is created by a combination of yellow and blue or yellow and cyan in the RGB color model used on television and computer screens it is one of the additive primary colors along with red and blue which are mixed in different combinations to create all other colors. Green is evoked by light with a predominant wavelength of roughly 495–570 nm. By far the largest contributor to nature is chlorophyll the chemical by which plants photosynthesize and convert sunlight into chemical energy. Many creatures have adapted to their environments by taking on a green hue themselves as camouflage. Several minerals have a color including the emerald which is colored green by its chromium content.

In the Middle Ages and Renaissance was the color commonly associated with merchants bankers and the gentry while red was reserved for the nobility. For this reason the costume of the Mona Lisa by Leonardo da Vinci and the benches in the British House of Commons are while those in the House of Lords are red. It also has a long historical tradition as the color of Ireland and of Gaelic culture. It is the historic color of Islam representing the lush vegetation of Paradise. It was the color of the banner of Muhammad and is found in the flags of nearly all Islamic countries. Paradise. Because of its association with nature it became the color of the Environmental Movement in the 1960s and Green Parties were founded in many counties.

In surveys made in Europe and the United States, green is the color most commonly associated with nature life health youth spring hope and envy. In Europe and the U.S. green is also sometimes associated with death or sickness In China its associations are very positive as the symbol of fertility and happiness. Because of its association with nature it is the color of the environmental movement. Political groups advocating environmental protection and social justice describe themselves as part of the Green movement some naming themselves Green parties. This has led to similar campaigns in advertising, as companies have sold or environmentally friendly products. Green is also the traditional color of safety and permission a green light means go ahead a card permits permanent residence in the United States.

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