A pastel is a stick of pure powdered pigment combined with a natural binder. As a medium, it sits comfortably between drawing and painting, giving artists both a sketch-like fluidity of line and the rich iridescent colour of paint.
At Unison Colour we make our pastels to the same recipes that John Hersey created over 30 years ago using traditional pigments.
We source the highest quality pigments from all over the world from the USA, Italy, UK, India.
In this current age there are very few pastel manufacturers who use natural pigments. Unison Colour use viridian, cobalt, titanium, cadmiums, ultramarine and natural and synthetic earths. All these pigments are incredibly lightfast- the best on the market.
- Viridian is a blue-green pigment, a hydrated chromium-oxide, and relatively dark in value. It is more green than blue. Viridian takes its name from the Latin ‘viridis’, meaning ‘green’.
- Cobalt is a lustrous, silvery-blue metal. Cobalt pigments are blue, green and violet.
3. Titanium is a white pigment which only became available for artistic purposes in the twentieth century.
4. Cadmium pigments are brilliantly coloured, with good permanence and tinting power. Cadmium yellow, orange and red are familiar artist’ colours.
5. Earth pigments are taken from the ground and these colours can be traced back thousands of years.
6. Ultramarine is a deep-blue coloured pigment. The name comes from the Latin ‘ultramarinus’, which means ‘beyond the sea’. Ultramarine was originally made by grinding lapis lazuli. It was more expensive than gold during the Renaissance and often reserved for painting the cloaks of Christ and the Virgin. A synthetic Ultramarine was invented in 1826.