60种色彩的考证中，最棘手的当数薛宝钗的“蜜合色”。当中医教授的朋友提及古法炼蜜“拉丝成金”的工艺时，黄荣华如醍醐灌顶——这不正是“蜜合”黄白隐红的视觉特征吗？

植物染色技艺最早可追溯至两千多年前的西周，中国正五色“赤、黄、青、黑、白”那时已具雏形。到了清代，刺绣理论专著《雪宦绣谱》中记载的色彩名称已达704种。然而，民国以来，随着化学染色工艺的兴起，植物染色因费时费力、难以大规模机械化生产，逐渐被边缘化，甚 ...

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