25 Pounder guns colour

[CWO (ret) Gilles Aubé]

We are receiving three 25 pounder guns from the Irish Artillery to the Canadian Artillery.
The guns will be distributed to different Artillery Units in Canada.
One will be going to the Limber Gunner of Toronto.
One will go to the 3rd (Montreal) Field Battery of Artillery (3BAM).
The last one has not been assigned yet.

The 3BAM gun will be sand-blast and repaint.
We would like to paint it the same colour used in Sicily during Operation Husky.

Does someone have the answer?
See attached the guns been loaded in Dublin.