Ugra is the Swiss Centre of Competence for Media and Printing Technology. The UGRA is particularly active in the areas of control agents and certifications.

Color accurate Proofs have to contain a media wedge, one of which is developed and published by the UGRA and Fogra. The latest revision is currently the Ugra / Fogra Media Wedge V3.0.

The metamerism card is based on the UGRA color temperature indicator which can be used to check the correct lighting of digital proofs and prints. It can be purchased in the store of

UGRA Color temperature indicator


Certified for
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