Leslie William Green was an English architect. He is best known for his design of iconic stations constructed on the London Underground railway system in central London during the first decade of the 20th century, with distinctive oxblood red faïence blocks including pillars and semi-circular first-floor windows, and patterned tiled interiors done in the Modern Style.

Oxblood or ox-blood is a dark shade of red. It resembles burgundy, but has less purple and more dark brown hues. The French term sang-de-bœuf, or sang de bœuf, with the same meaning is used in various contexts in English, but especially in pottery, where sang de boeuf glaze in the color is a classic ceramic glaze in Chinese ceramics.