What is sadie sinks favorite color?

As of my knowledge up to 2021, Sadie Sink, an American actress best known for her role as Max Mayfield in the Netflix series "Stranger Things," has not publicly revealed her favorite color. Personal preferences like favorite colors might not be widely known or disclosed by celebrities unless they specifically mention it in interviews or social media posts. Thus, the favorite color of Sadie Sink is not currently available information.