In a large bowl, combine flour, sugar, baking powder, and salt.
Stir in eggs, milk, and vegetable oil.
Evenly separate batter into 6 bowls. Add the food coloring to each batter creating the rainbow colors. Pour the batter onto a heated griddle using approximately 1/4 cup for each pancake. Keep the griddle on low heat in order to prevent the pancakes from browning.