Gansai Tambi Pearl Colours Shimmering Gansai with pearly colours. The rich and intense colors of Gansai Tambi are handcrafted, professional-quality pigment inks. These high-caliber watercolors are blendable with a creamy-smooth feel that show up on dark paper. Solid water colors for professional artists and crafters. Ideal for sketch, illustration, sumi-e and more.