Polar Blue (possible True Colors; credits: NASA/JPL/Space Science Institute)

Caption NASA:"Saturn's North Pole retains its bluish hue in this true color Cassini image, even as Northern Winter is coming to an end. The azure blue of Saturn's Winter Hemisphere during the early Cassini prime mission still remains a puzzle. Over the course of time, the blue color has faded and has been replaced with bands of other hues (see also PIA11141).
The North Pole is in shadow here, but a portion of its oscillating hexagonal pattern is visible. Storms create the look of a pockmarked surface.

Images taken using red, green and blue spectral filters were combined to create this Natural Color view. The images were acquired with the Cassini Spacecraft wide-angle camera on Nov. 29, 2008 at a distance of approx. 1,1 MKM (about 683.000 miles) from Saturn and at a Sun-Saturn-Spacecraft, or Phase, Angle of 38°.
Image scale is roughly 62 Km (about 39 miles) per pixel".