Why did Spielberg use color for the little girl and what color was it?

The little girl in the red coat is one of the most notable symbols from Schindler's List. Schindler notices her as she dodges through the crowd. He seems especially struck by her; to him, she represents the innocence of the people being killed. The color of her jacket symbolizes vitality and ambition. Even though she is young, she strives to get away and hide. Additionally, the red of her jacket symbolizes the red flag that the Jews waved at the Allied powers for assistance.