Chroma Atelier Interactive Artists' Acrylics - Blue Black (Indigo), 80 ml tube Blue Black (Indigo) 80 ml Chroma Atelier Interactive Artists' Acrylics are the world's only acrylic paints that can be used for conventional acrylic painting techniques, but when needed, artists can easily take advantage of their unique ability to rehydrate for blending techniques. - Chroma Atelier Interactive Artists' Acrylics - Blue Black (Indigo), 80 ml tubeChroma Interactive Acrylics, BLU BLK INDIGO 80ML -