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1

Yes, the CMYK colour space is smaller than the RGB space. So when you move from RGB to CMYK your colours are mapped to the nearest printable colour. To generalize, the RGB space has more very saturated "bright" colours. For in depth info, read up on 'additive' (RGB) and 'subtractive' (CMYK) colour.


2

It likely depends on what you qualify as 'CMYK'. Other answers have already established that the K is superfluous -- it's there to make printing easy, not because it's required for color. So that makes us wonder who first established that we could create (most) colors using only three colors ... and I believe that at least in the West, that's credited to ...


20

There is no single definable point when the CMYK Process Colour printing was discovered. High fidelity process colour reproduction printing has been a gradual series of technical refinements. The persons responsible are, however, known. Printed colour reproduction grew rapidly in popularity in the late nineteenth and early twentieth centuries to today, ...


1

I don't think it is accurate to say that CMYK was "discovered". I am anything except an artist or an historian, so take what I have with a huge grain of salt. But, think about it. Ink is just paint for paper. Any question about ink must refer back to paint, and of course we've been using paint for 8 thousand years. So, the question is not productive. CMYK is ...


35

CMYK is an improvement over CMY which itself is improvement over RYB model, which has been used for centuries (if not millennia). It's really hard to tell where one ends and the other begins, especially as some use words "red" and "blue" in more general sense. Eg. George Field's chart from 1841 lists "red, blue, yellow" but his red in our eyes looks closer ...


79

According to Joe Scout the first company to use CMYK in printing was Eagle Printing Ink Company and the year was 1906. It was not until 1956 that it became a standard as a result of Pantone trying to streamline the workflow.[1] This however does not really answer who really invented/discovered the choice of colors, the first scientific literature to ...


18

In 1906, the Eagle Printing Ink Company incorporated the four-colour wet process inks for the first time. These four colours were cyan, magenta, yellow, and black (also known as key), hence the name CMYK. It was discovered that these four colours can be combined to produce an almost unlimited number of richer, darker tones. Link: http://www.clubink....


1

Inkscape cannot embed CMYK color profiles, sorry. Scribus can, though. Here's a workflow that I have successfully used to get a print-production-ready PDF (with the "ISO Coated v2 300% (ECI)" color profile properly embedded). It is taken from a more detailed article on my blog. A word of warning: The workflow involves converting colors manually, so if ...



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