By examining a series of events involving sightings of multicolored clouds and discoveries of colorful minerals in China's southwestern provinces, this article considers the political implications of natural manifestations of polychromy in the Yongzheng period. Through previously unexamined written and material correspondence between governor-general Ortai (1680–1745) and the Yongzheng emperor (r. 1723–35), I argue that physical occurrences of color, both above and below ground, were understood as signs of Heavenly approval of the emperor's governance at a time of questionable military expansion into the Southwest. I also consider how celestial phenomena and colorful stones were translated into design motifs and carved into exclusive items at the Qing court, positing that these objects were understood as signs of the Yongzheng emperor's political legitimacy and concrete evidence of Qing control over the remote reaches of the empire.
