Picasso's Blue Period as his psychological state improved, he moved towards more joyful, vibrant works, and emphasized the use of pinks ("rose" in French) and other warm hues to express the shift in mood and subject matter. The painting "Portrait of Suzanne Bloch" (1904), one of the final works from this period, was stolen from the São Paulo Museum of Art (MASP) on December 20, 2007, but retrieved on January 8, 2008. Picasso's Blue Period The Blue Period () is a term used to define the works produced by Spanish painter Pablo Picasso between 1901 and 1904 when he painted essentially monochromatic paintings
Blue blue with a hint of green, which was ideal for painting skies. It was a favourite background colour of the German painter Albrecht Dürer. Another blue often used in the Middle Ages was called tournesol or folium. It was made from the plant Crozophora tinctoria, which grew in the south of France. It made a fine transparent blue valued in medieval manuscripts. Another common blue pigment was smalt, which was made by grinding blue cobalt glass into a fine powder. It made a deep violet blue similar to ultramarine, and was vivid in frescoes, but it lost some of its