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OK, this is OT, but I reckon someone here will know: the spectrophotometer for scanning paint chips in order to make a match is now pretty much standard equipment at all paint stores. But what is really happening? Do they use the scan and some sophisticated calculations to make a genuinely...

This is a curiousity question: does anyone know the CI numbers of the dyes used to make the CYM inks for the GRACoL profile?

Out of curiosity: what killed Hexachrome? Was it the complexity of doing the separations? Or was there just no demand for a 6 color process? Any chance we will see another attempt at a 6 color process in the future? I've heard a bit about Opaltone, but I don't think I understand what it is...

For an accurate color chart, what is the best method for "capturing" the colors? I have a client who wants "the most accurate possible" printed color chart for a line of 89 artists paint colors. They are made with 'traditional" pigments, which means that none of them are blindingly bright. I'm...

Newbie question here: lets say I asked a print shop to give me a passage that was Cyan 30 - Yellow 100, GRACoL profile. I do not have a physical swatch to show them, and I do not have a LAB value to give them. I just know that I want a passage that is Cyan 30 - Yellow 100, GRACoL profile. Is...

Hello, I'm a designer working on a color critical project. I'm using the GRACoL2006 profile for color management. Today's question: do CMYK builds have to be in 5% increments? My understanding is that modern technology has moved on, and that builds can be in 1% steps, although it is best if you...

Hello, I'm a designer, looking for input on some questions so that I can do a better job of designing a color-critical project and getting it printed correctly. Today's question: I assume that an ICC profile is premised on a certain color or whiteness of paper. So if I have a file that I know...

I'm designing a color-critical piece that will be printed on a sheet-fed press using the GRACoL profile. I'm a bit confused by dot gain. I'm using the usual Adobe products to produce the piece: InDesign, Photoshop, Illustrator. Do I need to do something to account for dot gain? Or is this...

Hello all, I'm a designer working on a color-critical project that will be printed on a sheet-fed press using the GRACoL profile. We have not yet chosen the printing company. I'm hoping you can educate me on a few points so that I can do a better job of designing the piece and also communicate...

Hi, I'm a designer, I'd like to get your input on a few points so I can discuss them more intelligently with print companies who will be invited to bid on the job. The project is color critical and will be done 4/0 on a sheetfed press. No spots. 1) I thought it would make sense to talk to G7...