How to draw a solid colored circle?

Question

I am working on some book writing. For that I need to draw circle filled with red color.

I tried \circle but it generate black circle only. How can I fill it with color?

Welcome to TeX.sx! Try \circle*. Or add a minimal working example (MWE) that illustrates your problem. It will be much easier for us to reproduce your situation and find out what the issue is when we see compilable code, starting with \documentclass{...} and ending with \end{document}. — Qrrbrbirlbel, Jan 08 '13 at 10:04
If you've already loaded color or xcolor (or a package that automaticall loads it, such as TikZ) you could also use the \textcolor command, e.g. \textcolor{red}{$\bullet$} — Tom Bombadil, Dec 16 '15 at 16:55

Ronny · Accepted Answer · 2015-05-05T05:59:44.597

One easy way would be to use TikZ as in the following MWE

\documentclass[a4paper,12pt]{scrartcl}
\usepackage{tikz}

\begin{document}
Some Text \tikz\draw[red,fill=red] (0,0) circle (.5ex); further text
\end{document}

which produces

enter image description here

Where the first red defines the line style of the drawn circle to be red and the fill=red specifies, that its solid red. You could also use black,fill=red to obtain a red circle with a black border. Finally of course the .5ex is the radius of the circle.

score 34 · Answer 2 · answered Jan 08 '13 at 10:30

Another solution with TikZ, but this one creates a command \tikzcircle to be used in the document:

\newcommand{\tikzcircle}[2][red,fill=red]{\tikz[baseline=-0.5ex]\draw[#1,radius=#2] (0,0) circle ;}%

It takes one mandatory argument, the radius of the circle and an optional argument that helps in customizing the circle's aspect.

The code:

\documentclass[a4paper,11pt]{article}
\usepackage{tikz}

\newcommand{\tikzcircle}[2][red,fill=red]{\tikz[baseline=-0.5ex]\draw[#1,radius=#2] (0,0) circle ;}%

\begin{document}
This is my text \tikzcircle{2pt} followed by \tikzcircle[green, fill=blue]{1.5pt} some other text \tikzcircle[fill=orange]{3pt} and some other text
\end{document}

The result:

enter image description here

Note that if you draw the line around the circle instead in addition to filling the interior, the visible diameter of the circle will be one linewidth more than 2*radius. — ndim, Jan 08 '13 at 13:18
Yes you're right, but I think for the purpose having the exact radius is not such a strict constraint. — Claudio Fiandrino, Jan 08 '13 at 13:49

score 16 · Answer 3 · answered Jan 08 '13 at 10:10

16

\documentclass{article}
\usepackage{xcolor,pict2e}% to allow any radius
\begin{document}
\leavevmode
\put(0,0){\circle{20.6}}\put(0,0){\color{red}\circle*{20}}

\end{document}

answered Jan 08 '13 at 10:10

chs · Answer 4 · 2022-11-21T18:16:36.510

15

\newcommand\filledcirc{\ensuremath{{\color{red}\bullet}\mathllap{\circ}}} gives you a \circ filled with red color. You need usepackage{mathtools} for the \mathllap command.

To change the border color as well, just change the color of the \circ, like so: \newcommand\filledcirc{\ensuremath{{\color{red}\bullet}\mathllap{\color{blue}\circ}}}.

The advantage over Tikz solutions is that it's much faster.

edited Nov 21 '22 at 18:16

answered Dec 16 '15 at 13:14

chs

443

this gives an error: missing $ inserted – banan3'14 Nov 20 '22 at 17:43
1

@banan3'14 I've added \ensuremath{...} to the commands. Now they should work outside of a math environment as well. – chs Nov 21 '22 at 18:17

score 1 · Answer 5 · edited Aug 19 '20 at 21:23

Put these two lines right after the \begin{document} command:

\setlength{\unitlength}{1mm}
\newcommand{\Newdot}{{\leavevmode\put(0,.63){\circle*{2.5}}}}

Then, anywhere in your document, you can put a big black dot with the \Newdot command.

...
\Newdot
...

This is for black dots. You can adjust the centering with the arguments of the \put(*,*) command, and adjust the size of the dot with the argument of the \circle*(*) command.

Color changes are addressed with \color{*} command as explained in previous comments.

How to draw a solid colored circle?

5 Answers5

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