One black across the body
The body reads as a single black tone, with the flap and the front pockets kept in the same colour. Black is the easiest colour to hold consistent between dye lots, which is why it repeats so often in school programmes — but it also shows abrasion and dust more plainly than a mid tone, so the surface finish matters as much as the shade.
Agree the finish — matte, grained or lightly coated — and check it against a rubbed swatch.
