Hermes Rodeo Robeo Coeur PM Charm Horse Milo Lambskin Jaune Milton – Bleu Nuit – Bleu Tie H086714CAAC

Jaune Milton against Bleu Nuit is the kind of pairing that looks wrong in theory and inevitable in practice: a warm apricot-yellow horse with a midnight-blue blanket, plus a darker tie-blue accent. Nothing about it is accidental, and nothing about it is shy. It is the palette of a night harbour, if the harbour kept a yellow lantern.

The Coeur version of the Robeo carries its heart detail on the blanket, stitched in Milo lambskin like everything else. Eight and a half centimetres from chest to flank, the piece hangs from its lanyard with a gentle swing that shows the colours off in motion, and the hook is sized to sit on slim handle rings without crowding them. The stitching on the blanket runs true around every corner.

I first clipped it to the zipper of a navy weekend bag, then stole it back for my own coat pocket, because a yellow charm against deep blue is simply a mood improvement device. It has earned compliments in lifts, queues and one very long taxi ride. It has sat on three different bags in a single month, which is its own fault for matching everything.

Honest points: high-contrast hearts are not for everyone — if you dress in muted colours, the yellow will read as the loudest thing you own. And like all lambskin, this wants a dry cloth after rain. Own the contrast or choose the quieter colourways. Wear it once on a dull day and the maths will convince you.