Feel free to use your favorite colors because there is an infinite variety of types, hues, and textures of mosaic materials on the market. The resulting colored sketch will be your cartoon. The tiles, stones, or other colored pieces that make up mosaics are called tesserae. The tesserae you choose to simulate will dictate your range of color. Marble, for instance, has soft, muted hues and sometimes streaks.
Venetian glass comes in lustrous glass cubes in an almost unlimited range of beautiful colors.
Another form of glass, vitreous, which is less costly, is also available in cubes in more than 100 colors. Colorful ceramic tesserae can be small or large tiles and square or rectangular, with perfectly squared corners. Pebbles are all shapes, colors, and sizes. The grout gives you another color choice. In early Greek and Roman mosaics, the grout was gray-beige.