Hi,
I am trying to find a way to mix two pantones in CYMK mode. I have tried with one color per layer and to lower the opacity of the one on top to 50%, but it doesnt work. For example, if I mix pure yellow with pure white the cyan value rises.
Is there any way to get accurate results, or is there any kind of assistant or utlity for this in photoshop?
Thanks!
Well... you could do this. But see cmy is device dependent so the generic rules of a perfect cmyk would work out into perfect rgb values however since AE has no idea of what the actual conversion rate is because its only going to ouput rgb.
Now cmyk works in opposite order of rgb where rgb i additive cmy is subtractive. So your layer modes should also be set to subtract, then just subtract the inverse of the cmy to rgb conversion. (please note if you have a white layer and subtract r its like adding c in a cmy palette, g is repectively m, and b is y).
This works like hitch but is obviously not accounting for the device dependent differences in color relations. (which is the reason you never work in cmy palettes unless you lock your output to one machine and never ever change it)
well, i've been doing a few tests and the 50% layer (yellow on top of white etc.) works perfectly, if the document is in CMYK, if it's in RGB the cyan creeps in.
check under images > mode.
if that doesn't work, it might be a colour profile issue, but i'm not so sure, mines set to display and i don't think i'm managing for any pre-press or photo option, check that, i know i'm not.
the alternative that might work is to create a gradient from one colour to the next and simply pick the midpoint. a three step process i admit but it should work.