Provided by: libcolor-scheme-perl_1.08-1_all 
NAME
Color::Scheme - generate pleasant color schemes
VERSION
version 1.08
SYNOPSIS
use Color::Scheme;
my $scheme = Color::Scheme->new
->from_hex('ff0000') # or ->from_hue(0)
->scheme('analogic')
->distance(0.3)
->add_complement(1)
->variation('pastel')
->web_safe(1)
my @list = $scheme->colors();
# @list = ( "999999","666699","ffffff","99cccc",
# "999999","666699","ffffff","9999cc",
# "669999","666699","ffffff","99cccc",
# "cccccc","996666","ffffff","cccc99" )
my $set = $scheme->colorset();
# $set = [ [ "999999","666699","ffffff","99cccc", ],
# [ "999999","666699","ffffff","9999cc", ],
# [ "669999","666699","ffffff","99cccc", ],
# [ "cccccc","996666","ffffff","cccc99" ] ]
DESCRIPTION
This module is a Perl implementation of Color Schemes 2
(<http://wellstyled.com/tools/colorscheme2/>), a color scheme generator. Start by
visiting the Color Schemes 2 web site and playing with the colors. When you want to
generate those schemes on the fly, begin using this module. The descriptions herein don't
make too much sense without actually seeing the colorful results.
Henceforth, paragraphs in quotes denote documentation copied from Color Schemes 2.
"Important note: This tool doesn't use the standard HSV or HSB model (the same HSV/HSB
values ie. in Photoshop describe different colors!). The color wheel used here differs
from the RGB spectre used on computer screens, it's more in accordance with the classical
color theory. This is also why some colors (especially shades of blue) make less bright
shades than the basic colors of the RGB-model. In plus, the RGB-model uses red-green-blue
as primary colors, but the red-yellow-blue combination is used here. This deformation also
causes incompatibility in color conversions from RGB-values. Therefore, the RGB input (eg.
the HTML hex values like #F854A9) is not exact, the conversion is rough and sometimes may
produce slightly different color."
PERL VERSION
This library should run on perls released even a long time ago. It should work on any
version of perl released in the last five years.
Although it may work on older versions of perl, no guarantee is made that the minimum
required version will not be increased. The version may be increased for any reason, and
there is no promise that patches will be accepted to lower the minimum required perl.
METHODS
new
The "new" method will return a new "Color::Scheme" object.
colors
Returns an array of 4, 8, 12 or 16 colors in "RRGGBB" hexidecimal notation (without a
leading "#") depending on the color scheme and addComplement parameter. For each set of
four, the first is usually the most saturated color, the second a darkened version, the
third a pale version and fourth a less-pale version.
For example: With a contrast scheme, "colors()" would return eight colors. Indexes 1 and
5 could be background colors, 2 and 6 could be foreground colors.
Trust me, it's much better if you check out the Color Scheme web site, whose URL is listed
in in "DESCRIPTION".
colorset
Returns a list of lists of the colors in groups of four. This method simply allows you to
reference a color in the scheme by its group isntead of its absolute index in the list of
colors. I am assuming that "colorset()" will make it easier to use this module with the
templating systems that are out there.
For example, if you were to follow the synopsis, say you wanted to retrieve the two
darkest colors from the first two groups of the scheme, which is typically the second
color in the group. You could retrieve them with "colors()":
my $first_background = ($scheme->colors)[1];
my $second_background = ($scheme->colors)[5];
Or, with this method,
my $first_background = $scheme->colorset->[0][1];
my $second_background = $scheme->colorset->[1][1];
from_hue
$scheme->from_hue( $degrees )
Sets the base color hue, where "degrees" is an integer. (Values greater than 359 and less
than 0 wrap back around the wheel.)
The default base hue is 0, or bright red.
from_hex
$scheme->from_hex( $color )
Sets the base color to the given color, where "color" is in the hexidecimal form RRGGBB.
"color" should not be preceded with a hash (#).
The default base color is the equivalent of #ff0000, or bright red.
add_complement
$scheme->add_complement( $bool )
If $bool is true, an extra set of colors will be produced using the complement of the
selected color.
This only works with the analogic color scheme. The default is false.
web_safe
$scheme->web_safe( $bool )
Sets whether the colors returned by "colors()" or "colorset()" will be web-safe.
The default is false.
distance
$scheme->distance( $float )
$float must be a value from 0 to 1. You might use this with the "triade", "tetrade" or
"analogic" color schemes.
The default is 0.5.
scheme
$scheme->scheme( $name )
$name must be a valid color scheme name. See "COLOR SCHEMES". The default is "mono".
variation
$scheme->variation( $name )
$name must be a valid color variation name. See "COLOR VARIATIONS".
COLOR SCHEMES
The following documentation is adapated (and mostly copied verbatim) from the Color
Schemes 2 help. Use one of these scheme names as an argument to the "scheme()" method.
monochromatic (or mono)
"Monochormatic scheme is based on only one color tint, and uses only variations made by
changing its saturation and brightness. Black and white colors are always added. The
result is comfortable for eyes, even when using aggressive color. However, it's harder to
find accents and highlights.
"The application makes only several monochromatic variants of each color. You'll be able
to make others - more or less saturated, lighter or darker. Monochromatic variations are
made for each color in other schemes, too."
contrast
"Base color is supplemented with its complement (color on the opposite side of the wheel).
One warm and one cold color is always created - we have to consider, which one will be
dominant, and if the result should look warm, or cold. Suitable monochromatic variations
of this two colors may be added to the scheme."
triade
"Base color is supplemented with two colors, placed identically on both sides of its
complement. Unlike the 'sharp' contrast, this scheme is often more comfortable for the
eyes, it's softer, and has more space for balancing warm and cold colors.
"You can use the "distance()" method to set the distance of these colors from the base
color complement. The less the value is, the closer the colors are to the contrast color,
and are more similar. The best value is between 0.25 and 0.5. Higher values aren't too
suitable - except the shift by 60°, which makes another color scheme, the triade:
"The triade is made by three colors evenly distributed on the thirds of the color wheel
(by 120 degrees). The triade-schemes are vibrating, full of energy, and have large space
to make contrasts, accents and to balance warm and cold colors. You can make the triade in
the 'soft contrast' scheme setting the distance to the maximal value, 1."
tetrade
"This scheme, also known as 'double-contrast,' is made by a pair of colors and their
complements. It's based on the tetrade - the foursome of colors evenly distributed on the
fourths of the color wheel (by 90 degreees). The tetrade is very aggressive color scheme,
requiring very good planning and very sensitive approach to relations of these colors.
"Less distance between two base colors causes less tension in the result. However, this
scheme is always more 'nervous' and 'action' than other schemes. While working with it,
we have to take care especially of relations between one color and the complement of its
adjacent color - in case of the tetrade (maximum distance 1), good feeling and very
sensitive approach are necessary."
analogic
"This scheme is made by base color and its adjacent colors - two colors identically on
both sides. It always looks very elegantly and clear, the result has less tension and it's
uniformly warm, or cold. If a color on the warm-cold border is chosen, the color with
opposite 'temperature' may be used for accenting the other two colors.
"You can set the distance of adjacent colors by using "distance()". Values between 0.25
and 0.5 (15-30 degrees on the wheel) are optimal. You can also add the contrast color; the
scheme is then supplemented with the complement of the base color. It must be treated only
as a complement - it adds tension to the palette, and it's too aggressive when overused.
However, used in details and as accent of main colors, it can be very effective and
elegant."
COLOR VARIATIONS
"Each of colors in displayed scheme has four variations. These are colors of the same hue,
but they differ in the saturation and brightness. ... The very first variation ... is the
base variation, which determines the look of the scheme. The other three variations are
just additional. Iff the scheme is made by less than four colors, the unused place is used
to display variations (or the complement) of the base color."
Use one of these variation names as an argument to the "variation()" method.
default
The default preset. Generally pretty nice.
pastel
Softer colors with added whiteness.
soft
Darker pastel colors.
light
Very light, almost washed-out colors.
hard
Deeper, more-saturated colors.
pale
Greyer, less-saturated colors.
CREDIT
Color Schemes 2, its documentation and original JavaScript code are copyright pixy
<http://www.wellstyled.com/>
The author has explicitly granted license for this distribution of code to be redistribute
as specified in the "COPYRIGHT AND LICENSE" section.
AUTHOR
Ian Langworth <ian.langworth@gmail.com>
CONTRIBUTORS
• Ian Langworth <ian@cpan.org>
• Ricardo Signes <rjbs@cpan.org>
• Ricardo Signes <rjbs@semiotic.systems>
• Yanick Champoux <yanick@babyl.dyndns.org>
COPYRIGHT AND LICENSE
This software is copyright (c) 2005 by Ian Langworth.
This is free software; you can redistribute it and/or modify it under the same terms as
the Perl 5 programming language system itself.