Difference between revisions of "Color"
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* For spot colors, say spot=yes. To eliminate everything except spot colours, leaving a clean file for professional printing, accompany this with rgb=no,cmyk=no. See spot colours below for more details. | * For spot colors, say spot=yes. To eliminate everything except spot colours, leaving a clean file for professional printing, accompany this with rgb=no,cmyk=no. See spot colours below for more details. | ||
* Normally all colors are defined in RGB ''and'' CMYK and get converted if needed. | * Normally all colors are defined in RGB ''and'' CMYK and get converted if needed. | ||
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=== Alternatives === | === Alternatives === |
Revision as of 20:47, 15 June 2015
Enabling colors
In current versions (newer than 11.05.2009) of ConTeXt mkiv, colors are enabled by default.
In older versions, colors must be enabled using
\setupcolors[state=start]
Defining Colors
Choosing a color model
- RGB and CMYK are enabled by default. If you want only RGB or only CMYK color, use cmyk=no or rgb=no. Multitone colors see below.
- For spot colors, say spot=yes. To eliminate everything except spot colours, leaving a clean file for professional printing, accompany this with rgb=no,cmyk=no. See spot colours below for more details.
- Normally all colors are defined in RGB and CMYK and get converted if needed.
Alternatives
You can generate an alternative definition set based on the results of
the xkcd color survey
with the
xcs-colors.lua
script.
Defining colors: \definecolor
\definecolor[blablue][r=.1, g=.1, b=1, c=1, m=.1, y=0, k=0, s=.2] (definition for RGB, CMYK and Grey!). See also Command/definecolor.
\definecolor[blablue][r=.25, g=.1, b=1, c=1, m=.1, y=0, k=0, s=.2] Here's some \color[blablue]{blue text} inbetween! |
Colors with Hexadecimal Numbers
You can also use hexadecimal numers to specify colors. You need to load the hex color module first:
\setupcolor[hex] \definecolor[salmon][h=AB5757] Hey, \color[salmon]{look at that!} |
Choosing a color scheme
There are three basic strategies to select color combinations for a particular design
- Create a color scheme by picking several colors found within the objects to be used (photographs, pictures, etc)
- Create colors derived from those found in the objects to be used
- Create a color scheme based on the message to convey / the psychological effects of color
See for additional help & reference:
- colorschemedesigner.com - Useful site to help choose a color scheme in rgb color space
- Tina Sutton, Bride M Whelan: The Complete Color Harmony. Rockport Publishers (2004). ISBN 978-1592530311 (recommanded in the mailing list)
Using Colors
- Use the color name like [color=blablue] in some \setup... command.
With text
Typeset single text elements with \color[colorname]{nice blue text}:
Three \color[red]{cool} cats |
Alternatively, typeset text elements with \colored[rgb values]{colored text} (suggested on NTG-ConTeXt: [1]):
Three \colored[r=.4, g=.4, b=.9]{colorful} kittens. |
Typeset longer sections with \startcolor[colorname] ... \stopcolor:
\setuppapersize[A6] \starttext \startcolor[orange] \input tufte \stopcolor \stoptext |
In titles
See Titles#Using_colors_in_chapters_and_sections
With frames
\framed[background=color, backgroundcolor=green]{bla} \framed[background=color, backgroundcolor=yellow, corner=00]{bla} |
Background of the page
\setuppapersize[A10] \setupbackgrounds[page][background=color,backgroundcolor=blue] \starttext text \stoptext |
Background of cells in tables
See
In Metapost
Metapost in MkIV is different from MkII and all labels are typeset and colored in TeX, if you want a label use
label(textext("\blue RED"),origin) ;
In TikZ
\usemodule[tikz] \starttext \tikz\shade[ball color=red!40!yellow] (0,0) circle (.15cm); \stoptext |
internal error: convert failed |
References
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