Payne's grey
/peɪn/noun
mass noun
- Printing a composite pigment composed of blue, red, black, and white permanent pigments, used especially for watercolours【印刷】佩恩灰（一种由蓝、红、黑和白色的永久颜料融合成的颜料, 尤用于水彩）。
词源
mid 19th cent.: named after William Payne （fl. 1800）, English artist.