Air Force One has had blue livery for as long as most of us can remember - but that hasn't always been the case. The tradition began with President Kennedy. His wife Jackie decided the plane needed a new look, and it was she who requested the distinctive white and blue shades.
Mrs. Kennedy's eye for design also extended to the plane's interior; she had the entire jet refit and refurnished according to her preferred schematics. It's understood that her designs made things a lot more comfortable inside.