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TeXnicians, How to convert RGB to equivalent CMYK color value from RGB color values? Please find MWE file as follows:

\documentclass[draft]{book} \usepackage{color,}

\definecolor{rgbcolor}{rgb}{0.686,0.059,0.569} %\definecolor{cmykcolor}{cmyk}{0, 0, 0, 0}

\begin{document} \textcolor{rgbcolor}{This is RGB color}

%\textcolor{cmykcolor}{This is Equivalent for converted RGB to CMYK color}

\end{document}

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You can use xcolor package

\documentclass[draft]{book}
\usepackage{xcolor}

\definecolor{rgbcolor}{rgb}{0.686,0.059,0.569} %\definecolor{cmykcolor}{cmyk}{0, 0, 0, 0}
\convertcolorspec{named}{rgbcolor}{cmyk}\tmp
\definecolor{cmykcolor}{cmyk}{\tmp}
\begin{document}
    \textcolor{rgbcolor}{This is RGB color}

    \textcolor{cmykcolor}{This is Equivalent for converted RGB to CMYK color}.
    The computed values are: \tmp.
\end{document}
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  • We created PDF file rgbcolor and cmykcolor shows complete different color. – Rajesh N Jan 5 at 8:01
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  • Above link show near same, but in PDFLaTeX shows complete different color – Rajesh N Jan 5 at 8:05
  • I need values of CMYK – Rajesh N Jan 5 at 8:07
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    You should read the xcolor documentation, subsection 6.3.1 p. 47 and subsection 6.3.2 p. 50 (in version 2.12). It seems you can adjust some parameters… – NBur Jan 5 at 8:31

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