Hi there,
The hull of a vessel can be painted any color, including black, blue or black and blue.....This maybe restricted only if there is a special employment of the ship that would reqiure a special color.
The life boats and life saving eqiupment were/are painted international orange, as it was thought to be the most easy to spot as sea (rescue). Disney did tests and proved to the various international orginazations, including the vessel p and I clubs and USCG that mickey yellow was just a visible, thats why the
DCL vessels lifeboatsd are yellow!
The DCL vessels have Mickey red boot top (waterlines) and the bottoms of all ship are pianted whatever is best for the antifouling (growth on the hulls)
qualities of the paint/apoxy. Most today are a dark metalic black/grey!
I know, becuase of 10 years at sea as a ships officer and 25 additional years in the Maritime industry!
Have a great cruise!!!
AKK