Why are the colors purple, white and yellow significant to Women's Rights?

They are a lasting symbol of the women's rights movement and serve as the basis for the National Women's Party Flag. Purple stood for dignity, white for purity and gold (yellow) for enlightenment. The National Women's Party added a star to its flag for each state that passed the 19th amendment. The addition of the 36th star meant the amendment was fully ratified in the U.S. Constitution - an event that occurred in 1920 after the state of Tennessee adopted the measure.