I have mixed a lot of the colors and rather than try to get a specific color, I keep record of the ratio/% and then have a fair chance of duplicating if I want to later. It takes some patience because it looks one color in raw form, another when painted and a lot of times even more different if you cure. I have had excellent success with the glitters and have even mixed glitters in with some clear and put on as a top coat. When I get a color I like I just call it whatever it appears to me and mark that as my color on the bottle and in the record diary. I have also tried adding pigments to the powder with some success. A little goes a long way. If I want to add more powder in a mix without adding color, I use the clear. I get the powder but not more color. I just enjoy the experimentation and the unique colors I get by mixing.