The Color of Cities

Paris, maybe more than any other city, has its color.
It's so distinctive. Such an unique look.
But what color is it exactly?
I've been trying to name it for the past two days.
And I invite you all to weigh in. Since I'm no Paris expert.
It's grey, but then it can be almost the color of a magnolia, or is it sand? Even at times off-white, or even white. But never white-washed, like something in the Mediterranean, god forbid, no.
That's not elegant enough.
And then the buildings are often flat-fronted, six or seven stories high, all with black wrought iron window railings. Not balconies or terraces like in Italy -- not the weather for that -- just faux balconies, really, just the railing outside the window, often with a splash of red geraniums on top.
And then there's the terracotta chimney tops, all lined up on the flat rectangular stone chimneys on every building.
Street after wide street the same in harmonious elegance.
Stunning.
And so unique.
Rome has a color too -- and I've struggled trying to name that one. Please help me there as well.
Rome's a burnt sienna, with a bit of pumpkin, some faint orange maybe, with some brown. More earth-colored; less austere.
More faded, though, too. Needs a paint job.
Paris doesn't need a paint job.
London's easy -- it's the color of brick, row upon row of little brick houses in tidy little brick streets. Endless little brick streets with rectangular signs with big black round lettering.
Do the big cities in America have a color too?
I'm not sure.
What color is New York -- in my view, America's most glorious city?
Is it a color?