Convenient for setting up tmux and other terminal software.

256colors_w_numbers.pl

#!/usr/bin/perl
# displays the 256 colors specified in tmux's "colourNN" way.
# June, 1st 2011 by Yasunori Taniike (@ytaniike).

use strict;
use warnings;

my $prefix_bl = "\x1b[38;5;0;48;5;";
my $prefix_wl = "\x1b[38;5;15;48;5;";
my $suffix = "\x1b[0m";

sub _color_part {
    my $color = shift;
    return sprintf("m C%03d ", $color);
}

# for colors0 to colors7 (also known as "system colors": black, red, green, yellow,
#  blue, magenta, cyan, white)
print "System colors: 8 colors x 2 rows:\n";
foreach my $color (0..7) {
    print "$prefix_wl$color" . _color_part($color);
}
print "$suffix\n";
foreach my $color (8..15) {
    print "$prefix_bl$color" . _color_part($color);
}
print "$suffix\n\n";

print "colour16 to colour231:\n";
my $index_offset = 15;
my $prefix = $prefix_wl;
foreach my $color (16..231) {
    $prefix = $prefix_bl if ($color > 123);
    print "$prefix$color" . _color_part($color);
    print "$suffix\n"
        if (($color - $index_offset) % (2*6) == 0); 
}
print "\n";

# grayscale
print "colour232 to colour255: Gray scale\n";
$prefix = $prefix_wl;
foreach my $color (232..255) {
    $prefix = $prefix_bl if ($color > 243);
    print "$prefix$color" . _color_part($color);
    print "$suffix\n"
        if (($color - $index_offset) % (2*6) == 0); 
}
exit (0);

Right; you need my two color modules (also on the cpan); to install, just:

cpan Term::ExtendedColor Term::ExtendedColor::Xresources

this is so you can see the actual color values as well as their indexes (in color).

Right; you need my two color modules (also on the cpan); to install, just:    cpan Term::ExtendedColor Term::ExtendedColor::Xresources

I've already them instted and checked em out. With --hex option, c256 --hex produced no results. I've got stop the run by sending SIGTERM to c256. my script is planed to show colour number in tmux, your tools seems to designed to be more technically point of view (mine is just practical). In anyway, Thanks you for the information. ## Yasunori Taniike