To be accepting of certain colors can often a matter of acquired taste ... I would never have felt that I would order a black dining room from the menu, but now I just might.
You also have to think about how color will affect the next room ... your home should have a color plan. Harmony of color, after all , is similar to creating a menu. Considering the ingredients , how they blend, and the results an be quite tasty ... Have you come up with a color menu for your castle ?