{color} is about using color in (La)TeX documents. Popular packages are color and xcolor.

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20
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2answers
1k views

How can I put a coloured outline around fraction lines?

I use the contour package to put thick white outlines around labels in graphs, so they remain readable above the grid lines without taking up too much space. Unfortunately, the package is not able to ...
19
votes
4answers
9k views

How to construct a coloured box with rounded corners

Here is the specs of the box. Color of the bar rule should be: \definecolor{mycolor}{rgb}{0.122, 0.435, 0.698} Radius of the 4 corners of the box: 4pt Thick line = 0.5pt Text should be 6pt ...
19
votes
3answers
11k views

beamer: change individual bullet color for pros and cons list

Is there a "nice" way to change the color of individual bullet points? For example imagine a list like this: \begin{itemize} \item A \begin{itemize} \item pro 1 \item con 1 \item pro ...
19
votes
2answers
3k views

How to get actual values of colour theme colours in beamer?

How would I go about finding the actual colour (like the RGB/HSV/etc) of a particular element in a given beamer colour theme (e.g., block title bg in orchid)? I would like to use these colours in ...
19
votes
1answer
1k views

Caption parbox 6.0 pt too wide

For my listings, I use this caption setup: \usepackage{caption} \DeclareCaptionFont{white}{\color{white}} \DeclareCaptionFormat{listing}{\colorbox{gray}{\parbox{\textwidth}{#1#2#3}}} ...
19
votes
1answer
491 views

Strange disappearing colored rules in beamer

I have received a booktabs bug report of \cmidrules that disappear when coloured rules are used inside beamer (together with colortbl). The problem can be illustrated with the following simple code ...
19
votes
2answers
550 views

Pros and cons: pdflatex+gs vs gs+pdflatex

I need to be producing two versions of documents I deal with: colour and grayscale. Of course the real issue are images. I'm not the author of the documents nor the images, I'm only the typesetter. ...
18
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3answers
2k views

Can I have the \overfullrule rule colored in pdfLaTeX?

I know that I can use \overfullrule=5pt to get overfull lines marked with a black marker. I am using pdfLaTeX. Is there a way I can get this marker or something similar in magenta instead?
18
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5answers
6k views

Color underline a formula

I want to underline different parts of a formula with different colors. What is the best possible option? Soul seems only to provide one color per document.
18
votes
1answer
6k views

Colors and legend in groupplots/barplot

In order to compare three items I use the groupplot command. For each item I have n different criteria to compare. Is it possible to set the color for each criteria itself? Meaning the first bar in ...
18
votes
1answer
8k views

Option clash for package xcolor

I'm writing a report, and have a rather large table in my appendix. I'd like to emphasize some specific values by coloring some single cells. I'm trying to do it with xcolor. But receiving the error: ...
18
votes
1answer
710 views

Defining a Color using another

I know how to define a color using \definecolor with literals to describe the color. How can I define a color using an already defined color? In other words: How can I make a color accessible under ...
18
votes
1answer
19k views

Custom beamer blocks for pros and cons?

I want to be able to define custom block environments in Beamer. That is, where for now I use alertblock and exampleblock I would rather use problock and conblock for a pro/con discussion. This just ...
18
votes
2answers
3k views

Coloring digits with the listings package

I'm trying to typeset some python code, and I would like integer literals to be highlighted. I've come up, after about two hours of fighting with the documentation and various other questions here and ...
18
votes
1answer
224 views

Why does a color meant for the first typeset line *only* (with package magaz) affect the *entire* document?

I am trying to make a nice layout that gives a different style to the first line in a section using the package magaz. All examples I have seen feature some variation of small caps {\scshape text} or ...
18
votes
1answer
246 views

Elements that looks different when printed with colours or in BW

Is there the possibility with LaTeX of having some element that change if it is printed with colours or in black and white? I was thinking about the rectangles around links with hyperref that are ...
17
votes
5answers
12k views

How to draw a square of 1cm in LaTeX filled with color?

How to draw a square of 1cm in LaTeX filled with colour? I found mdframed and framebox does this, but there need to write text inside it. I just need to draw a box.
17
votes
2answers
4k views

Why does \color{blue} differ from \color{Blue}?

\documentclass[dvipsnames]{article} \usepackage{xcolor} \begin{document} {\color{Blue}\bf Blue} versus {\color{blue}\bf blue}. \end{document} Why does one of them differ from ...
17
votes
1answer
5k views

Colored symbols

First of all, I apologize if this is a repetitive question. I searched, but couldn't find it. I was wondering if I can change the color of symbols in latex. For example \ast always give me a black ...
17
votes
2answers
2k views

Coloring chapters and sections with respect to parts

I am using the book document class and I want to produce a document with several parts, chapters, sections, sections and subsections. I would like to make it easier for the reader by coloring ...
17
votes
1answer
1k views

Retrieve the color definition in HTML

I need to build a table of this type: STUFF | COLOR | PICTURE | COLOR DEFINITION To retrieve the color definition, I tried to use \extractcolorspecs expecting that the third argument { color-cmd ...
17
votes
2answers
600 views

Getting verbatim with soft grey background, as in tex.stackexchange

Given a verbatim as on below, \begin{verbatim} This is an awesome verbatim \end{verbatim} which is displayed with no background on the compiled pdf page : This is an awesome verbatim I would ...
17
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1answer
1k views

Is it possible to use spot colors in TikZ graphics?

Using ConTeXt and Metapost, it is fairly easy to define spot colors and use them in an image: \starttext \definecolor[MyRed][c=0,m=1,y=1,k=0] \definespotcolor[RedSpot][MyRed][p=1,e=MyRed] ...
17
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2answers
875 views

XeLaTeX and TikZ - how do I ensure my PDFs are using the CMYK color model?

The place I want to print my document at needs the PDF to be provided in CMYK. The document is mostly text, except for a few graphs and plots which are done in TikZ or pgfplots. As suggested in this ...
17
votes
2answers
390 views

If a letter is white on white background, does a printer see it?

In preparation for press printing, I would like to produce a version of a document for printing a glossy varnish layer, where all the text is "missing", but the images and other elements are at the ...
16
votes
2answers
1k views

Coloring a black and white PDF graphic

I have a graphic in PDF format (originally converted from an SVG) that is monochromatic (black on white). Is it possible using TikZ or PSTricks but not (Illustrator or Inkscape) to include this image ...
16
votes
2answers
1k views

How do I get different colors for math and for text?

I want to include something in my LaTeX article that will make all mathematical formulae appear in black, while all text (including everything inside \text{}s in the middle of mathematical formulae) ...
16
votes
1answer
6k views

Change color in finished pdf file

Suppose I have a finished PDF file, say a figure generated from some software, where the ink is black. I would include it in a document. Suppose I want to include it in a beamer presentation with ...
16
votes
1answer
799 views

Shades of colors

I have defined a new color with \definecolor{MyBlue}{rgb}{0.25,0.5,0.75}. Is it possible to define now "derivatives" of this in term of shades? I would like to use the same color in three different ...
16
votes
2answers
6k views

How do I specify color in RGB using \hypersetup in hyperref?

How do I specify color in RGB using \hypersetup in hyperref? I know that this is the right way to do it with color names: \hypersetup{colorlinks,breaklinks, urlcolor=Maroon, ...
16
votes
3answers
5k views

How to colour multiple paragraphs?

I have a set of commands in my document's preamble that look like this: \newcommand{\nathaniel}[1]{\textcolor{blue}{[#1]}} \newcommand{\anotherAuthor}[1]{\textcolor{darkgreen}{[#1]}} They are to ...
16
votes
3answers
2k views

How to draw text-anchored tikz line below text instead of above?

I wish to mark several pairs of from/to anchor locations in text, and use tikz to draw lines between these. The anchors are not in absolute page locations; the text determines where the endpoints of ...
16
votes
2answers
445 views

How to make a longitudinal sine wave shading with pgfplots?

At the moment I use TikZ shadings to show up longitudinal waves in my document like this: The shading is white where the sine is –1 and blue where the sine equals 1. This looks ok, but ...
16
votes
1answer
469 views

Color Blind Friendly Mesh Colormap

I have a plot with a mesh and it uses a lovely colormap, however, I can't find a way to make tikzpicture only use colorblind friendly colors. I'm not colorblind, but I know at least some of the people ...
15
votes
3answers
10k views

Height of colorbox

I'm trying to "highlight" two parts of a sentence by using a \colorbox like so: \colorbox{red}{This is} \colorbox{blue}{a great sentence.} The problem is that in the second part the height colorbox ...
15
votes
1answer
448 views

xcolor black isn't black enough

I'm making a poster (using baposter) where I wish to include some microscopy images. To make the fluorescent signals stand out better, I changed the background of that cell to "pitchblack", which I ...
15
votes
2answers
2k views

Colored background in inline listings

I would like to make inline code more distinguishable from the text surrounding it, and I thought that using a background might work (like it is done on the stackexchange pages.) Since I use the ...
15
votes
2answers
361 views

Is it possible to detect the “current color”? (for example in a pgfplot drawing?)

Is there a code to deduce the current color of a PGF plot to which a node is associated? Better yet, is it possible to get the RGB decomposition as well? ... addplot coordinates{ (0,0) (1,1) } node{ ...
15
votes
3answers
12k views

How to specify transparent colors?

What options are there to specify transparent colors, say the background in the example below? I thought xcolor would be able to do this but I can not find any reference to "alpha" or "transparency" ...
15
votes
1answer
2k views

coloring every other row of a table, with vertical lines

I am making a table that needs every other row colored. I thought to use this. \usepackage[table,svgnames]{xcolor} \rowcolors{1}{white}{gray!15} But my table has vertical bars ...
15
votes
2answers
956 views

Tables: Colouring odd/even mixed up

I have a huge document (around 100 pages) and a lot of tables in it. I used \usepackage[table]{xcolor} \definecolor{lightblue}{rgb}{0.93,0.95,1.0} \rowcolors{1}{white}{lightblue} % odd = white, even ...
15
votes
1answer
6k views

Coloring columns in a table with colortbl and booktabs

I have created a rather complicated table with some columns that I want to color. For the table, I chose the booktabs and tabularx packages. For coloring the columns, I use colortbl. The problem that ...
15
votes
1answer
809 views

How can I have text colored on screen and black on printing?

I have a document with colored hyperlinks, using the options of the hyperref package. I also have lots of tikz-figures that use various shades of gray and occasionally some colors. The way my ...
14
votes
4answers
939 views

Color the faces of a graph

I want to modify the image (see code below) by shading in the regions formed by the dashed lines that contain a black dot. The goal is to obtain something like How can I shade these regions? ...
14
votes
2answers
7k views

How to highlight important parts (with a gray background)

In the below link http://www.math.uiowa.edu/~goodman/algebrabook.dir/bookmt.pdf the author highlights anything which is important using a greyish color background. For example, if you see ...
14
votes
2answers
2k views

coloring entire row of tabular*

I would like to have the first row of all my tables colored with a certain color (below yellow) but somehow below thing is not working as expected This: \documentclass[a4paper, 12pt]{report} ...
14
votes
2answers
481 views

“Drill holes” using glyphs or TikZ's even odd rule for text

I know how to use TikZ even and odd rule, but what I need is to apply it on a node text. Compare I need the text to be punched out such that when I use the resulting pdf on top of a background, the ...
14
votes
2answers
938 views

Color gradient fill between three corners of a triangle

Updates Update1: Tried to implement solution by Harish Kumar (below) Update2: Added a real example of what I would like to get in the end. I have a feeling I tried to leave to many things out. ...
14
votes
2answers
10k views

Changing color of default enumeration

To my surprise, I've had trouble finding red themes, and used the beamer theme matrix to find CambridgeUS. I've changed the itemized bullets to match, but I can't seem to make the enumerations red. ...
14
votes
2answers
1k views

Figuring out RGB or HEX color from xcolor

I have defined a color using: \definecolor{canvascolor}{rgb}{0.643,0.690,0.843} Then this is used with this command like canvascolor!75!white from xcolor. This is actually done in the beamer theme ...