Characteristics of Blue Colors

Blue colors have following characteristics which attracts the human attention;

•  Dark blue represents knowledge, power, integrity, and seriousness.
•  In Western civilization, those in the upper classes in high places of political or economic power often wear dark blue suits. 
• Ordinary members of the working class (especially those who work in the computer industry) often refer derisively to these management functionaries as the suits.
• In historical atlases published in Germany, light blue is traditionally used as a color to represent Germany, as opposed to pink for England, purple for France, and light green for Russia. 
•  In the English language, blue often represents the human emotion of sadness, e.g. "He was feeling blue". 
• Ice, water, sky, sadness, winter, cold, calm and heaven, these all reflect impacts of the blue color.
• The using of light shade of blue symbolizing peace.