Colour theory
April 18, 2008 8:09 am BooksJust seen this post over at GreyscaleGorilla basically about a design book and a bit of colour theory (always good to know).
I just wanted to point out my worry about C+M+Y=K in CMYK though.
I used to work in print (newspapers, so it may be different elsewhere) and one of my challenges creating pdf’s on the fly from web input was the converion from RGB to CMYK and making sure that the black was K not C+M+Y. The reason was explained to me as ‘when your basically printing on bogroll at 100mph if your black isn’t black [100%K, but C+M+Y] then [especially on text] you’ll just get a fuzzy mess [if there is any misalignment]’. I realise that newspapers aren’t everyone’s target publishing medium.
Having said that, you can get much nicer tonal greys, subtle colourings with warm and cold shades, using additive colour than you can with percentages of K.