Pebeo Studio Gouache Primary Set 6 x 20ml Tubes. An introduction to Studio Gouache with 6 x 20ml tubes of assorted essential & primary colours. Colour remains bright and vivid even after drying. Colours included: 11 Permanent White, 48 Primary Yellow, 50 Primary Magenta, 49 Primary Cyan, 27 Yellow Ochre and 51 Trichromatic Black.