Try these beautiful colors created by Akashiya, a Japanese company with hundreds of years of brush making history. The set consists of a gorgeous collection of 24 traditional Japanese watercolors. The water colors were made with materials safe for humans (i.e. without the use of heavy metals such as lead, chromium, mercury, etc.)
The colors are: Ai (Indigo, AP-04), Aokusa (Green Grass - Dark Green, AP-11), Asagi (Blue Green, AP-07), Beni (Crimson, AP-21), Biai (Vivid Indigo, AP-05), Botan (Peony - Maroon, AP-19), Byakugun (Light Ultramarine Blue, AP-08), Byakuroku (Light Blue Green, AP-13), Enji (Dark Red, AP-20), Gin (Silver, AP-24), Gofun (Chalk White, AP-01), Gunjo (Ultramarine Blue, AP-06), Ki (Yellow, AP-15), Kikusa (Miscanthus Grass - Yellow Green, AP-14), Kin (Gold, AP-23), Kobai (Red Plum - Maroon, AP-22), Kuro (Black, AP-02), Murasaki (Purple, AP-03), Noryoku (Dark Green, AP-09), Odo (Yellow Ochre, AP-16), Rokusho (Green Rust, AP-10), Shu (Vermilion, AP-17), Taisha (Red Ochre, AP-18), and Wakaba (New Leaves - Green, AP-12).