Sofia Vergara is best known for playing a buxom brunette on TV’s “Modern Family,” but few know the Colombian-born actress is actually a natural blonde. READ: Charo's Gross Remark About Sofia Vergara The 41-year-old, whose gorgeousness graces the latest cover of Glam Belleza Latina, tells the beauty magazine that becoming the highest-paid female actress on television meant hiding her natural roots early on in her career. “When I first got to Hollywood, I wasn’t getting roles because I didn’t…