Introductory seminar: Measuring and evaluating colours

When working with colours, there are always deviations, for a wide variety of reasons. Deviations may occur between a proof and a print sample or even between 2 print samples. In this respect, both the human eye and measuring technology have an important role to play In order to objectively compare colour samples, in addition to visual assessment, measured values are also used and in this respect, colour difference can now be calculated through various methods. These deltaE values are often specified by customer as maximum deviations, e.g. for spot colours in logos, but also in specifications.

The basics of colour measurement technology using measuring equipment such as densitometers and spectrophotometers. Acquisition and presentation of density and colour values for further use. Applying colour measurements and colour difference measurements. Applying colour difference formulas.

Target group
Technical managers, managers in pre-press, pre-press operators

Main themes
  • Relevant norms and standards
  • Colour theory: Additive and subtractive colour models
  • Measuring and testing equipment in colour management
  • Colour matching conditions: Under which light do we see colours?
  • Measuring colour data
  • Comparing colour data, applying colour difference formulas
  • Lab or spectral data?
  • Measuring conditions
  • Working with checklists
  • Measuring, checking and documenting, archiving data and documents
Certificate of attendance 


Duration 1 Day
Price 420 €
Number of participants 15
Course Language German




Lothar Roth
Lothar Roth
Janoschka Holding GmbH
Lothar Roth is the source of know-how for technology questions, standardisation and quality assurance. He has been in the company since 1980. Mr. Roth is responsible for all research and development activities as well the offering from the Janoschka Academy. In addition, he supervises the entire technical area from reproduction through colour management to the use of workflow systems.