User Manual


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Describes the size of a gamut of a substrate - printer and ink/toner combination. 

Find more details in the article Background Information.

Gamut expanding Colors

The color gamut of a digital printing system is usually achieved by using the four primary colors CMYK. The color gamut of a printing system can be changed by changing the primary colors CMYK or by adding additional colors such as orange, violet or green. Gamut-enhancing colors basically offer the following advantages:

  1. Color Gamut extension - especially bright orange, green and blue shades can be achieved in print and thus the distance to the Pantone colors can be reduced.
  2. Reduction of the ink application - instead of printing Magenta and Yellow orange could be used. This would reduce the structure of the material due to the ink application and would also prevent the breaking of the colour due to buckling of the material.
  3. Ink cost reduction - if gamut-enhancing colors can be used instead of two primary colors, this could also reduce ink costs. Note, however, that Gamut Expanding Colors usually have higher purchase prices. Thus, a reduction in ink costs would only be striking if much of a gamut expanding color is used.


  • Top left: 3D representation of the CMYK gamut of the RSC printing system.
  • Top right: 3D-view of the CMYK-OVG-gamut of the RSC printing system
  • Below: Spider's web display of the CMYK-OVG gamut of the RSC printing system with gamut-enhancing inks drawn in.

Global Graphics

Global Graphics Software Ltd.

Building 2030
Cambourne Business Park
Cambridge CB23 6DW

Tel: +44 1954 283100

E-Mail: [email protected]

For rendering and screening we have implemented the Harlequin Host Renderer, better known in the market under the name Harlequin RIP, as well as ScreenPro, the screening engine of Global Graphics. Advanced techniques such as PrintFlat are available as integrated modules.

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