The correct answer to this question is Pink. Piglet is a fictional character from the Winnie-the-Pooh books. He is Winnie the Pooh's best friend, and he made his first appearance in 1926. The original illustrations of him were by Ernest H. Shepard. They showed Piglet with pale skin and a green jumper.
The illustration above is the Disney version of Piglet. This version first appeared in 1968. Along with the pink skin, the color of the jumpsuit also changed, making it magenta. Piglet is often confused with being a girl because of his pink skin, but he is a boy.