If you want to add color to award and recognition pieces made from clear or jade glass, make sure you choose a paint color that is opaque enough to show up solidly when light comes through the glass. In this case, you have the most popular choice of using any good-quality spray paint from your hardware store. If you need to match colors for a given logo, you are better off going to an art supply store since they carry spray paints that match the Pantone charts used in the printing industry.
—Professional Glass Consultant