In the product the mark is always blue on the surface: beside the wordmark in the sidebar and header, and on its own in the collapsed rail. Use <Logo />; never rebuild it. The white-on-blue tile is only for the app icon and the browser tab, where a filled square is required.
One colour: brand blue #2563EB (--buttons-brand), or white on brand blue. Never a commodity colour, a gradient, black on a photo, or any other blue. The commodities keep their own colours inside the product, so the mark never competes with them.
one-link-app-icon.svg, full bleed; the stores round the corners themselves.link icon. The icon is for links in the interface; the mark is only ever One Link.UAG's business is connection. It stands between Zambia's farmers and its mills, and between grain that arrives by sea and the mills that need it. Every tonne UAG handles is a link between someone who grows or ships it and someone who needs it.
The mark is two links joined into one. One side is the farmer, the other the mill. Where they meet, the overlap forms a single grain kernel. The grain sits at the exact point where the two join, because that is what UAG does: it sits in the middle and makes the connection work, one load at a time. It is also what One Link does, turning many spreadsheets, phone calls and workbooks into one record that everyone reads.
The shape is deliberately simple. It has to be recognisable on a farmer's phone screen in bright sun, on a clerk's screen at the weighbridge, and as a small icon in the app store. It uses One Link's own blue, and every commodity keeps its own colour inside the product, so the logo never competes with the wheat, maize, soya and fertiliser it serves.