According to colormatters.com, Green is associated with nature, rebirth, and fertility. It is also a verb, as in "going green." It is used in traffic lights all over the world. It is also the color of money. Dark green is associated with words such as masculine, wealth, and conservative.
Cool colors, like green, appear to "move away from you," as opposed to warm colors, which appear to "move toward you." Green is a calming color. Hospital rooms are painted light green because it has a calming effect on patients.
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