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That was fascinating folks!
The CYM colour system can work in oils, but you will end up mixing a great deal of yellow ochre hue. You have to get very specific organic pigments and when properly mixed you will also achieve a black or a really rich dark.
Black pigments end up bluish or brownish because of chemical qualities, they are not perfectly neutral or light absorbing. The CYM palette will also end up with very glowing colours. Perhaps a bit unnatural, but an excellent exercise in colour mixing. If the Organics were time tested, I would probably use them all the time. There was for me a period of eye to colour adjustment.
Lastly, CYM + Black in printing, is I believe to speed up the drying of the print. One application of black dries faster than 3 colours constantly being mixed.
In the older Italian printeries, it is ultramarine blue,a warm yellow,cold red and a greyed neutral black.
Khaimraj
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Khaimraj
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