Difference between revisions of "Color"
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| − | < [[Visuals | + | < [[Visuals]] | [[Graphics]] > |
=Using Colors= | =Using Colors= | ||
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* Try the magic <cmd>showcolor</cmd><tt>[xxx]</tt>! | * Try the magic <cmd>showcolor</cmd><tt>[xxx]</tt>! | ||
* Define your own colors with <cmd>definecolor</cmd><tt>[blablue][r=.1, g=.1, b=1, c=1, m=.1, y=0, k=0, s=.2]</tt> (definition for RGB, CMYK and Grey!) | * Define your own colors with <cmd>definecolor</cmd><tt>[blablue][r=.1, g=.1, b=1, c=1, m=.1, y=0, k=0, s=.2]</tt> (definition for RGB, CMYK and Grey!) | ||
| + | * You can define '''transparent''' colors through setting t, e.g. <tt>t=0.5</tt>. Beware, most PDF viewers and printshops can't handle PDF transparences! | ||
* Use the color name like <tt>[color=blablue]</tt> in some <tt>\setup...</tt> command. | * Use the color name like <tt>[color=blablue]</tt> in some <tt>\setup...</tt> command. | ||
* Typeset single text elements with <cmd>color</cmd><tt>[blablue]{nice blue text}</tt> or longer sections with <cmd>startcolor</cmd><tt>[blablue] ...</tt> <cmd>stopcolor</cmd>. | * Typeset single text elements with <cmd>color</cmd><tt>[blablue]{nice blue text}</tt> or longer sections with <cmd>startcolor</cmd><tt>[blablue] ...</tt> <cmd>stopcolor</cmd>. | ||
Revision as of 17:31, 25 November 2004
Using Colors
Using colors with ConTeXt is easy:
- Start with \setupcolors[state=start]. Without that, everything appears in greys.
- If you want only RGB or only CMYK color, use cmyk=no or rgb=no. It seems there are also spot and hexachrome colors possible, but I don't know yet how.
- Normally all colors are defined in RGB and CMYK and get converted if needed.
- You find lists of predefined colors in the files colo-xxx.tex, load them with \setupcolor[xxx]:
- rgb: some simple colors, loaded by default (with translations for the different interface languages!)
- xwi: X-Windows-colors
- pra: PRAGMA ADE company colors
- ema: Emacs colors
- Try the magic \showcolor[xxx]!
- Define your own colors with \definecolor[blablue][r=.1, g=.1, b=1, c=1, m=.1, y=0, k=0, s=.2] (definition for RGB, CMYK and Grey!)
- You can define transparent colors through setting t, e.g. t=0.5. Beware, most PDF viewers and printshops can't handle PDF transparences!
- Use the color name like [color=blablue] in some \setup... command.
- Typeset single text elements with \color[blablue]{nice blue text} or longer sections with \startcolor[blablue] ... \stopcolor.
(See also "Color and Background" in the manual!)
Sample
\setupcolors[state=start] \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! \showcolor[rgb]
Colorgroups and Palettes
\definecolorgroup[name][system][values]
\definepalet[palettename][colorname1=groupcolor:1, colorname2=groupcolor:2, ...]
Very interesting feature, to be described later... (see manual)
