ᐅ Should the wall color match the door and baseboard?

Hello everyone,
I am currently deciding on wall colors and would appreciate your advice:
Is it common to choose the wall color to exactly match the door color (RAL 9010 Pure White) or the baseboard color (RAL 9016 Traffic White)?
If I decide on RAL 9016 or RAL 9010 as the wall color, should the ceiling (height 2.54 m (8.3 ft)) be painted the same color? Or would it be better to choose a slightly lighter shade (e.g., RAL 9003 Signal White) to make the room appear taller?
Does it make sense to paint rooms without natural light (bathroom, guest toilet, utility room, hallway) in Signal White to keep them bright and help reflect the limited light?
Or would it be more common to paint the entire apartment uniformly?
So many questions. I am grateful for your suggestions.

Can’t everyone just do it however they want?

I’m glad I didn’t have to worry about that...

Lorelei schrieb:
So many questions. I appreciate your advice.

If you like thinking about everything... why not?!

In my opinion, it is physically impossible to match the color exactly because doors have a different surface texture than walls and therefore reflect and refract light differently, which is what creates the color perception in the brain.

When painting, people usually focus on color accents or contrast—I don’t know anyone who uses plain traffic white, signaling white, or pure white anymore. These days, it’s more common to use a shade of gray or a touch of ochre or brown in the paint. In this context, doors play a minor role; the main focus is on the effect over a large area.

From experience... even unicorn white paint fades over time... if not from children's hands, then just with age.