White-ground technique is a style of white ancient Greek pottery and the painting in which figures appear on a white background. It developed in the region of Attica, dated to about 500 BC. It was especially associated with vases made for ritual and funerary use, if only because the painted surface was more fragile than in the other main techniques of black-figure and red-figure vase painting. Nevertheless, a wide range of subjects are depicted.
In white-ground pottery, the vase is covered with a light or white slip of kaolinite. A similar slip had been used as carrier for vase paintings in the Geometric and Archaic periods. White-ground vases were produced, for example, in Ionia, Laconia and on the Cycladic islands. But only in Athens did it develop into a veritable separate style beside black-figure and red-figure vase painting. For that reason, the term white-ground pottery or white-ground vase painting is usually used in reference to the Attic material only.
The light slip was probably meant to make the vases appear more valuable, perhaps by eliciting associations with ivory or marble. However, in no case was a vessel's entire surface covered in white slip. It has also been conjectured that this form of painting emerged in order to emulate the more prestigious medium of wall painting, but the thesis has been elusive of proof. Furthermore, the group of five Huge Lekythoi (ca. 70-100 cm high) are covered entirely in white slip, which suggests an imitation of marble lekythoi for funerary purposes.
White-ground vase painting often occurred in association with red-figure vase painting. Especially typical of this are kylikes with a white-ground interior and a red-figure exterior image. White-ground painting is less durable than black- or red-figure, which is why such vases were primarily used as votives and grave vessels.