They are red, white or blue.
white
The most common color found on country flags is red, followed by white and blue. These colors are often used to symbolize patriotism, bravery, purity, and freedom.
Black - White - Red
The most common color in the flags of the world is red. It symbolizes courage, strength, and blood shed for independence. Additionally, red is often associated with passion and vitality.
The flags are red and yellow
redThe most common colour on the flags is RED.
Gold
Red
i would think red ? :D if you disagree then you are wierd :L
Because pink is a too clear color and it wouldn't appear well on the flags.
Blue with a yellow cross.
red color