skew the gamut cmyk

Skew the Gamut

By Elizabeth Gooding / Published:

Mary Schilling recently wrote about different approaches to matching Pantone colors on production inkjet. We got an interesting note from one of our UK readers, David Albin, who suggested that forcing a color RIP to hit a particular Pantone color e.g. certain reds and oranges, can skew the gamut for complex images on CMYK printers with high chroma inks.

We thought it would be worthwhile to share the response as the folks reading our site from the broader inkjet arena, perhaps using high chroma inks on flat beds or roll plotters, or UV wide format might experience issues that David describes, as well as, skewed colors and issues with combined L*a*b* spot/RGB bitmaps and rendering intents.

However, generally in a production inkjet environment (the focus of Inkjet Insight) the chroma of the ink and using a compatible paper keeps reds and blues limited within an expected range for most combinations. So, sticking with the recommendation to start with spot colors in the design file depends on your color conversion workflow and if your RIP process allows colors assigned as L*a*b* to be processed rendering intent independent.

So many things in our complex world of machine, RIP, ink and paper can go wrong – but this is one where it’s actually more likely to go right.

Keep the ideas coming.


skew the gamut cmyk

P.S. Think we skewed something up on a post? Let us know.



About the Author

Elizabeth Gooding


Elizabeth is the Editor and Co-founder of Inkjet Insight. She has a rare ability to see print related issues from many perspectives. She has managed creative teams on complex design projects, selected outsourcers for major brands and helped print organizations to retool operations, focus their market positioning and educate sales teams to accelerate growth. She works with a team of top analysts to translate experiences into tools, data and content to help print organizations evaluate the potential of inkjet, optimize their operations and grow pages profitably. She is a founding member of the Inkjet Summit advisory board, the co-author of an award-winning book on designing for inkjet and a curious consultant constantly seeking innovative ways to drive new pages onto inkjet presses.

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