Flag of Tonga Cross, which had been adopted in 1863. As a result of this finding, the Tongan flag was set at the canton of a red field instead, leading to the present design of the flag. The previous design, nonetheless, remains a national symbol of Tonga. The current flag of Tonga also has some similarities with the flags of Switzerland and Georgia. Flag of Tonga The flag of Tonga consists of a red field with a white canton charged with a red couped cross. Adopted in 1875 after being officially enshrined into the nation's constitution, it has been the flag of the
Flag of Switzerland so that the ratio of cross to flag width is 5:12. The shade of red used in the flag was not defined by law prior to 2017. The 2017 flag law specifies the colour of the flag as: In 2004, the Federal Chancellery published a corporate design guide for the federal administration, in force since 1 January 2007. The colour specifications given there are compatible with those later put in the annex to the flag law. The matching of heraldic tincture to modern color specifications for print or screen display is very uncertain, and to some extent left to the