Artists can use each color singly or by combining them to create a wide variety of rich, vibrant hues. When the colors are created, few mixed pigments are used. Three to five pigments are normally used in the creation of the Unison Pastels.
Each pastel is carefully rolled by hand. This pain-staking technique ensures a soft, creamy texture without using heat or direct compression. Great care is taken to ensure that each color is consistently uniform in both hue and texture.
The colors designed by John Hersey were formulated over a span of several decades to create the truest color possible. His unique technique allows for each pastel to retain as much actual pigment as possible. Each single pigment is capable of producing a multitude of variations in different kinds of light.