The Amazingly Consistent Tan Color Scheme of This Movie

On a recent watch of The Day of the Jackal from 1973, one thing stuck out and it didn't take long to do so:

The overall, constant and consistent COLOR scheme of the film: tan, with shades of beige and brown mixed in.

The director was Fred Zinneman -- his first film in six years since Best Picture winner A Man for all Seasons in 1966. Zinneman had a reputation as a skilled craftsman and here -- I figure he worked with both his cinematographer and his production designer to make sure that every scene in Day of the Jackal LOOKED a certain color: tan.
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Was some of this acheived with a camera filter? In post-production "color timing" in the lab? I don't know. I'm no expert.

But there is something truly amazing in how consistent the color scheme is.

I even noticed REAL BUILDINGS used for exteriors in some scenes played in tan ..or at least neutral white so the tan would work.

Meanwhile: the interior sets of the hotel dining room and upstairs hotel floor where the Jackal seduces an attractive married woman are...tan. No doubt built FOR the movie and in the color desired.

And: this rather fits the "fair-haired" blonde look of the Jackal ("We are looking for a fair-haired blond man" say the authorities to each other) as well.

Until later in the film when he dies his hair dark brown and ruins the effect.

But that's just his hair. The MOVIE keeps looking fair-haired and blond...and tan.