Reply #4: This is a false color picture..

[Heyo]

.. from images taken in UV and infared wavelengths. To look at Titan with your naked eye, all you would see is a featureless orange ball, a result of the very thick shroud of haze that blankets the entire planet.

This flyby was an effort to use instruments to peer beneath that haze to catch a glimpse of the surface features.

The sky if you were standing on Titan would be a really thick orange fog, letting in very little sunlight, and very very cold.

Heyo

on edit: I didn't answer your Q, Yes that is the atmosphere, but it is not really blue.