|Use||National flag and ensign|
|Design||A horizontal tricolor of orange-white-blue.|
The flag of New Orange is a tricolour consisting of three equal horizontal orange, white, and blue bands. The Prince's Flag was an old flag of the Netherlands, therefore a de facto flag of the New Netherland colony, which would become New Orange.
The New Orangite naval ensign was based on the Dutch naval jack, the main difference being the red replaced with orange. The orange has many speculated meanings: the orange reflecting the nation's Dutch heritage (similar to in the national flag; also represented by using the old Dutch naval jack design), the "Orange" in the name New Orange (again, similar to the national flag), and also simply to distinguish from the Dutch naval jack.
Main article: History of the Prince's Flag
The Prince's Flag was first introduced by Sea Beggars in the Capture of Brielle in 1572. In 1587, the Admiralty of Zeeland ordered these flags to fly on their warships. It soon became a symbol of the Dutch Revolt and was adopted by the Dutch Republic. The orange in the flag gradually changed to red around 1650, becoming the flag of the Netherlands still in use today. The reason for this is unknown, although several theories exist. The orange-white-blue flag, however, continued to be flown as well and in later times formed the basis for the South African flag.
The Prince's Flag was a de facto flag of the New Netherland colony until the Dutch flag's change to red. When New Netherland declared its independence in 1763 as New Orange, it chose the Prince's Flag as its national flag as to distinguish from the Dutch flag.