Blue is a pretty colour. The light and dark of blue is very appealing. It just feels so good gazing up at the daytime blue sky. Travelling down memory lane, my school uniform was a white blouse and a blue pleated skirt. The ocean is a tantalizing deep blue and my ma's favourite colour was blue.There is a genre of music and a mood named after the colour.   Some Interesting facts about Blue. Blue is a relatively new colour and the last colour to be named in the English language.  The Chinese associate colours with the 5 primary elements, the four seasons and directions. Hence they associate blue with wood, east and spring. Blue is a sign of Hope in countries with a high Catholic population. Blue is the fifth colour of the rainbow. According to L. Elizabeth Crawford, a psychology professor at the University of Richmond in Virginia, the association of blue with sadness arose from the look of the bo...