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On Tue, 19 Feb 2008, Alan BRASLAU wrote:
Hello,
Another problem with PGF+ConTeXt is the handling of cmyk colors:
\usemodule[tikz] \setupcolors[state=start] \definecolor[my_yellow][c=0,m=0.3,y=0.94,k=0] \starttext \startcolor[my_yellow] Yellow text. \stopcolor \starttikzpicture \fill[my_yellow] (0,0) circle(1); \stoptikzpicture \stoptext
CMYK colors work in ConTeXt but do not get passed correctly to PGF/TikZ. A work-around is to transform to rgb : \definecolor[my_yellow][r=0.98,g=0.698,b=0.09] % 250,178,23 #FAB217
This seems to be a documented bug; Perhaps it will be fixed someday...
Please report it again on the pgf mailing list. Till Tantau is making significant changes to pgf and I do not think it should be too difficult for pgf to support cmyk color model in ConTeXt. Aditya