<:
-sub luminance {
- # perceived brightness (using ITU-R recommendation 601 luma co-efficients)
- my ($r, $g, $b) = @_;
- return $r*.299 + $g*.587 + $b*.114;
-}
+use Shiar_Sheet::Colour;
sub colcell {
- my $id = shift;
- my @rgb = @_ >= 3 ? @_ : (map {hex} $_[0] =~ /(..)/g);
- my $rgb24 = '';
- $rgb24 .= sprintf '%X', min($_ / 17 + .5, 15) for @rgb[0..2];
- 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",
- $id,
- "background:#000; color:#$rgb48",
- $rgb24,
- "background:#FFF; color:#$rgb48",
- $rgb24,
+ my $name = shift;
+ my $col = Shiar_Sheet::Colour->new(@_);
+ my $minhex = $col->rgb24;
+ my $css = '#' . $col->rgb48;
+ my $inverse = '#' . sprintf('%X', $col->luminance/255 < .3 ? 12 : 0) x 3;
+
+ my $sample = [ qw(#000 #FFF) ];
+ ($name, $sample) = @$name if ref $name eq 'ARRAY';
+
+ my $out = sprintf(' | %s',
+ join(',', map { int } @$col),
+ "background:$css; color:$inverse; padding:0 1ex",
+ $name,
+ );
+ $out .= sprintf ' | %s', "background:$_; color:$css", $minhex
+ for @$sample;
+ return "$out\n";
}
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
@@ -74,59 +67,80 @@ my %col = (
qw/2E3436 CC0000 4E9A06 C4A000 3465A4 75507B 06989A D3D7CF
555753 EF2929 8AE234 FCE94F 729FCF AD7FA8 34E2E2 EEEEEC/,
],
+ -xkcd => [
+ qw/black maroon green olive navy purple teal silver
+ grey red lime yellow blue fuchsia cyan white/,
+ ],
+ xkcd => [
+ 0,0,
+ qw/000000 650021 15b01a 6e750e 01153e 7e1e9c 029386 c5c9c7
+ 929591 e50000 aaff32 ffff14 0343df ed0dd9 00ffff ffffff/,
+ ],
);
-for my $term (qw/html cga xterm tango/) {
- print '', "\n";
+for my $term (qw/cga xterm tango html xkcd/) {
print '', "\n";
print "$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]);
+ my $name = $col{"-$term"}[$num] || $num;
+ $name = [ $name, ['#333'] ] if $term eq 'xkcd';
+ print ' ', colcell($name, $rgb);
}
- print " \n\n";
+ print "\n\n";
}
-:>
+:>
-88-colour space |