Cobalt Violet Light Size:5ml so it is considered medium

so it is considered medium staining

yet oldest

45Tint Strength: 86

Colour index number: 73900-51319

Pigment classification: Ammonium ferro(3+) hexa- cyano/C ferrat(4-)

Cobalt Violet Light Size:5ml so it is considered mediumSennelier artist oil pastels have an extraordinarily high pigment content. Their texture is soft and creamy, almost like a lipstick. All 120 colours in the range are 100% lightfast, making Sennelier Oil Pastel a true artist quality. All shades can be mixed together. Oil pastel can be diluted with turpentine and worked with a brush. They are acid free and can be used on paper, canvas, wood or metal etc. Sennelier oil pastels contain no drying agent.