将浅灰色转换为 cmyk 以获得更清晰的打印效果是否有意义？这是否需要选择（不同且）较暗的颜色？

Question

在我的文档中，我使用的颜色lightgray在屏幕上看起来不错，但在打印时（使用黑白激光打印机）几乎无法辨认。使用 pkg xcolor：

• lightgray尝试将其转换为更易读的等效值\convertcolorspec是否有意义cmyk印刷结果？
• 这是否需要选择一个更暗颜色，或者可以选择cmyk1:1 的等效颜色lightgray，看起来与原件lightgray一模一样屏幕？
• 如果是，如何编码？

一个非常简单的 MWE：

\documentclass{article}

\usepackage{lipsum}

\usepackage{xcolor}

\begin{document}


\lipsum[6]

{\textcolor{lightgray} {\lipsum[3]}}

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%%%%% Some more or less random snippets from the xcolor manual %%%%%%%%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% \extractcolorspec{lightgray}\tmpa
% \expandafter\convertcolorspec\tmpa{cmyk}\tmpb
% \expandafter\convertcolorspec\tmpa{RGB}\tmpc

% {\textcolor{\extractcolorspec{lightgray}{\tmpa\expandafter\convertcolorspec\tmpa{cmyk}\tmpb}}{\lipsum[2]}}

% \convertcolorspec

%%%%%%%%%%%%%%%%%%%%%%%%%
% Colors via svgnames option

% LightSlateGray
% LightSlateGrey

% Silver
%%%%%%%%%%%%%%%%%%%%%%%%%

% - enhanced color definition syntax to allow for target-model specific color parameters, e.g., \definecolor {red}{rgb/cmyk}{1,0,0/0,1,1,0}, facilitating the usage of tailor-made colors both for displays and printers; 

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%


\end{document}

---

也可以看看这里。