xcolors - display all X11 color names and colors
reads the rgb.txt file that defines the color names the X server
displays the colors found.
At the top of the window is a sample region containing text. By
clicking on the color names, the color of the sample text can be
changed. Mouse button 1 changes the foreground; button 2 changes the
background. The text can also be edited.
Typing ``q'' exits the program.
In addition the the usual X Toolkit options, xcolors understands
these command line options:
- -start name
specify a color name to start with; colors
before this one in the rgb.txt file are skipped. This option is
useful if there are more colors than will fit on your screen or in
- -rgbfile filename
specify an alternate color database file to read.
- -near nearcolor
only show colors near this one in the RGB space.
All colors within a sphere in the RGB-space
centered on nearcolor are displayed.
- -distance howfar
defines how close colors have to be to nearcolor to be displayed.
This option sets the radius of the sphere used by the -near option.
The scale is such that the RGB cube is 256 units on a side.
The default is 64.
Set the foreground color of the sample region. If no color is
provided, the color is taken from the border color of the widget where
the action occurred.
Same as set-foreground() but sets the background color.
Xcolors has a few top-level application resources that allow
customizations that are specific to xcolors.
- startColor (classStartColor)
See the -start option.
- rgbFile (classRgbFile)
See the -rgbfile option.
- nearColor (classNearColor)
See the -near option.
- nearDistance (classNearDistance)
See the -distance option.
Knowing the name and position in the hierarchy of each widget is
useful when specifying resources for them. In the chart below, the
class and name of each widget is given.
X color names and values.
Assumes that all names for the same color are consecutive in the
Because xcolors cannot read the server's color name database,
the color names it uses may not match those in the server. This is most
likely to happen if xcolors is run from a remote host.
The program would be faster if it used gadgets instead of widgets for
the color spots.
Stephen Gildea, MIT X Consortium
- WIDGET HIERARCHY
This document was created by
using the manual pages.
Time: 05:55:17 GMT, August 12, 2002