How should I paint my crown molding?

Personal choice. Most people paint crown molding white no matter what ceiling or wall color are. A contrasting color other than the ceiling or wall color. A shade darker than the wall color also looks good.

Moulding should match the trim in the house. It is supposed to stand out. If you paint it to match either the wall or the ceiling, what is the point of even having it? No one will notice it. BTW, that is why I don't like white ceilings!

They are painted the color of the ceiling in my house. I would say it depends upon the look you want - lower ceilings, wall color - Higher ceilings, ceiling color.

maybe neither----purely personal preference just depends on look you are trying to acheive-taller ceilings? all blended/all the same so you don't really notice it? could be white crown molding with lighter color painted ceilings and darker walls?? or darker ceiling with lighter walls and even darker crown molding,could be wood crown molding with painted walls & ceilings.Online info." The crown molding color generally should not be the same as the ceiling ... In this case, you might opt to paint crown molding and walls to match.If the other trim in the room is stained, stain the crown molding to match. One exception is when the ceiling seems low in the room already -- a crown molding that is painted a different color than the walls may make the ceiling seem even lower because the highlighted molding draws the eyes upward.And if you have a room with low ceilings, painting baseboards and crown molding will make the room seem taller."https://www.sherwin-williams.com/home-builders/color/color-education/sw-article-pro-trimituptips Gee are you thoroughly confused yet here are pictures maybe to help you get look you want https://www.google.com/search?sa=X&rlz=1C1CHBF_enUS750US750&q=painting+crown+molding+ideas&tbm=isch&source=univ&safe=active&ved=2ahUKEwijhdSnyILhAhVTs54KHRM7DiAQsAR6BAgDEAE&biw=1366&bih=657

In a kitchen, they can match the cabinets.