Neo-Grec is a term referring to late manifestations of Neoclassicism, early Neo-Renaissance now called the Greek Revival style, which was popularized in architecture, the decorative arts, and in painting during France's Second Empire, or the reign of Napoleon III, a period that lasted approximately between 1848 and 1865. It was one of many "Revival styles" of the mid to late 19th century, and just one among several concurrent modes of Classicism. The Neo-Grec vogue took as its starting point the earlier expressions of the Neoclassical style inspired by 18th-century excavations at Pompeii, which resumed in earnest in 1848, and similar excavations at Herculaneum.
In the decorative arts, Neo-Grec was based on the standard repertory of Greco-Roman ornament, combining motifs drawn from Greek vase-painting and repetitive architectural motifs like anthemions, palmettes, Greek key with elements from the Adam and Louis XVI styles of early Neoclassicism (c. 1765–1790), and of Napoleonic-era Egyptian revival decorative arts; it can be identified by the frequent use of isolated motifs of Classical heads and figures, masks, winged griffins, sea-serpents, urns, medallions, arabesques and lotus buds confined within panels, shaped reserves or multiple borders of anthemion, guilloche, and Greek fret pattern. Neo-Grec was eclectic, abstracted, polychromatic, and sometimes bizarre. Its treatment was intentionally dry and linear. Its vignettes and repeating patterns lent themselves to stencilling. Typical "Neo-Grec" color harmonies were rich and harsh: black motifs and outlines against "Pompeian" red, powder blue and puce, bistre and olive drab might be combined in a single decor.