Steel gray or acciaio, can come in dark or light and are popular Murano glass bead colors. These have very different effects under 24kt gold foil beads or sterling silver and white gold. The colors will vary from a steel gray to a olive green. Also in this category are pastel grays, which are non-transparent colors and are often used as the base colors for some of our beads. For a classic look, mix these with black Murano glass beads.