“Green Hell” was the nickname frequently given to France’s largest overseas penal colony in French Guiana. This essay explores the slow and difficult recognition of penal heritage in France and its former colonies via the notion of “grey” heritage adopted by Philippe Artières to identify heritage associated with imprisonment and detention. Drawing on the cross-disciplinary field of colour studies, we explore a series of different possible readings of “grey” in order to highlight different ways in which sites can be instrumentalised to both affirm and negate carceral continuities across history and transnationally. Focusing on locations in French Guiana and the Con Dao archipelago in Vietnam, the essay explores the materiality of these spaces, their presentation and their visitors, in order to suggest how “grey heritage” might be developed as a critical and reflexive approach to the carceral past.

“绿色地狱”是法国最大的海外流放地法属圭亚那经常被冠以“绿色地狱”的绰号。本文通过 Philippe Artières 为识别与监禁和拘留相关的遗产而采用的“灰色”遗产的概念，探讨了法国及其前殖民地对刑事遗产的缓慢和困难的承认。借助色彩研究的跨学科领域，我们探索了一系列对“灰色”的不同可能解读，以突出不同的方式，这些地点可以被用来确认和否定跨历史和跨国的监狱连续性。本文重点关注法属圭亚那和越南昆岛群岛的地点，探讨这些空间的物质性、它们的展示和访客，