<:
sub luminance {
# perceived brightness (using ITU-R recommendation 601 luma co-efficients)
@@ -38,8 +34,9 @@ sub colcell {
my $rgb48 = '';
$rgb48 .= sprintf '%02X', $_ for @rgb[0..2];
my $inverse = sprintf('%X', luminance(@rgb)/255 < .3 ? 12 : 0) x 3;
- return sprintf '| %s | %s | %s'."\n",
- "background:#$rgb48; color:#$inverse",
+ return sprintf ' | %s | %s | %s'."\n",
+ join(',', map { int } @rgb[0..2]),
+ "background:#$rgb48; color:#$inverse; padding:0 1ex",
$id,
"background:#000; color:#$rgb48",
$rgb24,
@@ -48,7 +45,7 @@ sub colcell {
}
my %col = (
- -name => [
+ -html => [
qw/black maroon green olive navy purple cyan silver
gray red lime yellow blue fuchsia aqua white/,
qw/reset bold dim italic underline blink fastblink
@@ -77,35 +74,67 @@ my %col = (
);
for my $term (qw/html cga xterm tango/) {
- print '', "\n";
print '', "\n";
print "$term\n";
for my $num (0 .. 15) {
my $rgb = $col{$term}[$num + 2];
print '',
- colcell($term eq 'html' ? $col{-name}[$num] : $num, $rgb, $col{$term}[0]);
+ colcell($col{"-$term"}[$num] || $num, $rgb, $col{$term}[0]);
}
- print " \n\n";
+ print "\n\n";
}
-:>
+:>
-88-colour space
+
+
+88-colour space
<:
for my $r (0 .. 3) {
- print '';
+ print '';
for my $g (0 .. 3) {
print '';
for my $b (0 .. 3) {
- print colcell($r*4*4 + $g*4 + $b + 16, map {(0, 139, 205, 255)[$_]} $r, $g, $b);
+ my $index = $r*4*4 + $g*4 + $b + 16;
+ print colcell($index, map {(0, 139, 205, 255)[$_]} $r, $g, $b);
}
}
print " \n";
}
print "\n";
-print '', map { colcell(80, ($_) x 3) } 46, 92, 115, 139, 162, 185, 208, 231;
+print '';
+print colcell(80+$_, (($_ + 2 + ($_>0)) * 255/11) x 3) for 0 .. 7;
print "
\n\n";
-:>
-
+
+:>
+<: if ($ENV{PATH_INFO} =~ /256/) { :>
+
+
+
+256-colour space
+<:
+for my $r (0 .. 5) {
+ print '';
+ for my $g (0 .. 5) {
+ print '';
+ for my $b (0 .. 5) {
+ my $index = $r*6*6 + $g*6 + $b + 16;
+ print colcell($index, map { $_ && $_*40 + 55 } $r, $g, $b);
+ }
+ }
+ print " \n";
+}
+print "\n";
+
+for my $row (0, 12) {
+ print '';
+ print colcell(232+$_, ($_*10 + 8) x 3) for $row .. $row+11;
+ print "
\n";
+}
+print "\n";
+
+:>
+<: } :>
+
|