It is a cold color, and is located in the color circle facing the red color, The blue is a basic color, and comes between green and violet.
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This color becomes deeper when surrounded by black or when it is displayed in wide areas. When it moves from a white background to a black background, it turns from dark to light.
It is the color that controls the earth, it determines the dimensions, and gives the feeling of depth, characterized by reducing tension and nervousness in man.
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His presence in nature is all good, he is the color of the pure sky, and in the water rebound, and in the clouds good andhope.
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It is a source of calm and optimism, as the girls who are ready to marry in Greece are optimistic and are keen to wear a blue band or a ring of this color in concerts to avoid envy.
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