Saab, Buick. Red and blue car logos Red and blue car brand logos are very rare, among which the three most famous brands are Saab, Buick and Alfa Romeo. Three of the trademarks all use a circular design, while Saab uses a red lion shape with a crown on a blue circular background. The Buick logo takes the form of a shield, and the single color scheme of red, blue and gray is exactly how it is designed, while in Alfa Romeo it is a graphic design of a cross and a snake.