Somebody had to choose these colors. I'm not sure they work together. The wrought iron rail at the top looks to be the same lavender color as the door on the right.
In France, door and window shutters offer an opportunity for bright colors that break the monotony of a streetscape made mostly of stone. I found these two examples fairly close to one another in the city of Niort, near the west coast of France.
A close look reveals that the top corners of this door are cut at an angle to make it fit within the arch of the stone frame.
The first one is a little over the top, the second one more elegantly understated, in my humble opinion.









