Both posters use only three simple colors to create a strong contrast. The poster uses three colors: black, red and blue. Black represents the dark business of human trafficking, which cannot see the light of day. Red means danger, we need to be alert, human trafficking may be happening all around us. Blue represents calmness. We should not sit on the side when we find people buying and selling. We should be brave and calm at the same time and take the right measures to stop it. The first one is when people are sold as goods, do you still want to buy? They all have different prices, but the end result is the same. It’s a warning against human trafficking. The second poster shows a hand holding out a candy and asking if you still want to eat it? Remind people, especially children, not to eat other people’s food.