In Thai culture each day of the week is assigned a color. According to belief, the day of your birth is your color. The colors are derived from the god who protects that day. For instance, HM King Bhumibol was born on a Monday (December 5 1927) so his color is Yellow. This is why many Thais wear yellow shirts on Mondays in Thailand. Blue shirts worn on Friday are a show of respect for HM Queen Sirikit who was born on August 12, 1932, a Friday. Pink was traditionally worn on Tuesdays for King Chulalongkorn but has gained new popularity after HM King Bhumibol was shown leaving the hospital in 2007 wearing a bright pink blazer. Many wear pink on Tuesdays to wish the king good health.