.\" -*- mode: troff; coding: utf-8 -*- .\" Automatically generated by Pod::Man v6.0.2 (Pod::Simple 3.45) .\" .\" Standard preamble: .\" ======================================================================== .de Sp \" Vertical space (when we can't use .PP) .if t .sp .5v .if n .sp .. .de Vb \" Begin verbatim text .ft CW .nf .ne \\$1 .. .de Ve \" End verbatim text .ft R .fi .. .\" \*(C` and \*(C' are quotes in nroff, nothing in troff, for use with C<>. .ie n \{\ . ds C` "" . ds C' "" 'br\} .el\{\ . ds C` . ds C' 'br\} .\" .\" Escape single quotes in literal strings from groff's Unicode transform. .ie \n(.g .ds Aq \(aq .el .ds Aq ' .\" .\" If the F register is >0, we'll generate index entries on stderr for .\" titles (.TH), headers (.SH), subsections (.SS), items (.Ip), and index .\" entries marked with X<> in POD. Of course, you'll have to process the .\" output yourself in some meaningful fashion. .\" .\" Avoid warning from groff about undefined register 'F'. .de IX .. .nr rF 0 .if \n(.g .if rF .nr rF 1 .if (\n(rF:(\n(.g==0)) \{\ . if \nF \{\ . de IX . tm Index:\\$1\t\\n%\t"\\$2" .. . if !\nF==2 \{\ . nr % 0 . nr F 2 . \} . \} .\} .rr rF .\" .\" Required to disable full justification in groff 1.23.0. .if n .ds AD l .\" ======================================================================== .\" .IX Title "Mail::SpamAssassin::HTML::Color 3" .TH Mail::SpamAssassin::HTML::Color 3 2025-12-13 "perl v5.42.0" "User Contributed Perl Documentation" .\" For nroff, turn off justification. Always turn off hyphenation; it makes .\" way too many mistakes in technical documents. .if n .ad l .nh .SH NAME Mail::SpamAssassin::HTML::Color \- A class to parse and manipulate CSS color values .SH SYNOPSIS .IX Header "SYNOPSIS" .Vb 1 \& use Mail::SpamAssassin::HTML::Color; \& \& my $color = Mail::SpamAssassin::HTML::Color\->new(\*(Aqrgba(255, 0, 153, 0.5)\*(Aq); \& $color\->blend([255, 255, 255]); \& my $distance = $color\->distance([0, 0, 0]); \& print "$color"; # Outputs the color as a hex string .Ve .SH DESCRIPTION .IX Header "DESCRIPTION" This class provides methods to parse various CSS color formats, blend them with a background color, calculate the distance between two colors, and convert the color to a hex string. .SH METHODS .IX Header "METHODS" .SS new($color) .IX Subsection "new($color)" Creates a new color object from a CSS color string. .SS blend($background) .IX Subsection "blend($background)" Blends the color with the given background color. Modifies the color in\-place and returns the modified object. .SS distance($other_color) .IX Subsection "distance($other_color)" Calculates the distance between the current color and another color using a brightness\-weighted geometric formula. .SS as_hex .IX Subsection "as_hex" Returns the color as a hex string with a leading \*(Aq#\*(Aq. .SS as_array .IX Subsection "as_array" Returns the color as an array of RGB values.