Aureolin
PY40
Aureolin is a cobalt-based pigment developed in Germany in 1831. It became available to artists in the 1850s. It is a golden yellow that tends to be semi-opaque in watercolour, but more transparent in oil paint. Because of concerns about its permanence, Aureolin is used infrequently today. You may also see it called 'Cobalt Yellow'.


Autumn landscape with a colliery, George Price Boyce, 1866–67, Watercolour, gouache (bodycolour), gum, 28.6 × 41.3 cm, 11 1/4 × 16 1/4 in, Purchase, Friends of Drawings and Prints Gifts, 2023, The Metropolitan Museum of Art


Joseph Mallord William Turner, Scene at Lutworth, 1870–1880, Watercolour and gouache with scraping, over graphite, on cream wove paper, laid down on board, 39.3 × 48.3 cm, 15 1/2 × 19 1/16 in, Credit LineThe Leonora Hall Gurley Memorial Collection, Art Institute of Chicago

