Note that in the printed output, the ACI colors are mapped to print black by the monochrome.ctb file, but the truecolor object still prints in color. In the image below, the drawing includes a green polyline, a yellow polyline, a cyan circle and a solid object whose color is 255,87,255 - (a truecolor). Plot style tables only apply to the ACI colors 1-255, so if you use a truecolor or color book color, those items will print in the same color as it’s shown on screen without you having to do anything. Where are we going with all of this? Presuming your standard plot style today is set up so that each color prints black, how can you print certain things in color without using a different plot style? The answer is to use a color OTHER THAN colors 1-255, such as a truecolor or color book color. For that matter, you could tell AutoCAD to print color 4 (cyan) as magenta at a width of 0.044″! Talk about confusing, I don’t think mixing the screen colors and the print colors was done very often. So what if you wanted color back then? Presuming you actually had a color printer, you could just as easily tell AutoCAD to print color 4 (cyan) as cyan at a width of 0.028″ wide. For example, you could specify that you wanted color 1 (red) to print black at 0.014″ wide, and color 3 (green) to print black at 0.021″ wide. In the early days of AutoCAD, there were 255 colors available and each one of those could be assigned certain properties that affected how they would print. For similar colors use the colors in the top half of the AutoCAD Color Index dialog box.
![autocad plot style line color autocad plot style line color](https://allaboutcad.com/wp-content/uploads/2019/04/autocad_tips_color-dependent-plot-style-1.png)
Layers that tend to group together should have similar colors. An example would be to use yellow-green (70) or a purple (200). inexpensive), and this has kept the use of color on the back burner for a long time. Keep splitting the existing colors in the AutoCAD color dialog box as more colors are needed.
![autocad plot style line color autocad plot style line color](http://cadpanacea.com/wp/wp-content/uploads/2016/04/r13pens.png)
For these users, little has changed over the years since their drawings are generally mass reproduced on high speed monochrome equipment (i.e.
![autocad plot style line color autocad plot style line color](https://www.landfx.com/images/docs/autocad/plotting/2550/move.png)
Many CAD users today still routinely produce monochrome drawings of construction documents in their daily production work.