Color matching between Indigo and offset

sornchai

Active member
My local HP Indigo 5500 agent created 39l , 47l profile but my jobs used many kinds of paper such as Antallis paper . When we printed proof on Toccata paper for offset matching. Why I can't use same ink density for both Indigo and offset ? Thank you for recomendations
 

Bill W

Well-known member
Density only measures ink thickness, not color. Additionally color is effected by substrate color. I would guess that if you measured your solid ink patches using a spectrophotometer you would find out that the same densities printed on your offset press and your indigo are not close in Lab values, therefore they are not close in color.
 

SteveSuffRIT

Well-known member
ICC profiles, either from Fogra or GRACoL, reference a white point for the substrate. If you paper fits into that general type of paper (gloss coated, dull/matte, uncoated, which effect SID & TVI) and has similar CIE Lab for whiteness (dE<3), then that profile should be close.
 

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