"The position is new for me and for them. It's a way to be authentically involved in a real partnership with the company," Kerry tells People. "I never wanted to partner with a company where I felt like I was losing myself and my sense of authenticity."
And given her long hours on the set of Scandal, she's more than qualified to talk beauty products.
"I live and work in makeup so I have a perspective on how a lip color works after eight hours on the set or an hour on the red carpet," she says.
Washington has quickly gained a reputation in Hollywood for her enviable fashion -- she was named People's Best Dressed Woman of 2013, and was invited to be a guest judge on Thursday's finale of Project Runway.