NAME¶

"Convert::Color::HSL" - a color value represented as hue/saturation/lightness

SYNOPSIS¶

Directly:

 use Convert::Color::HSL;
 my $red = Convert::Color::HSL->new( 0, 1, 0.5 );
 # Can also parse strings
 my $pink = Convert::Color::HSL->new( '0,1,0.8' );

Via Convert::Color:

 use Convert::Color;
 my $cyan = Convert::Color->new( 'hsl:300,1,0.5' );

DESCRIPTION¶

Objects in this class represent a color in HSL space, as a set of three floating-point values. Hue is stored as a value in degrees, in the range 0 to 360 (exclusive). Saturation and lightness are in the range 0 to 1.

CONSTRUCTOR¶

$color = Convert::Color::HSL->new( $hue, $saturation, $lightness )¶

Returns a new object to represent the set of values given. The hue should be in the range 0 to 360 (exclusive), and saturation and lightness should be between 0 and 1. Values outside of these ranges will be clamped.

$color = Convert::Color::HSL->new( $string )¶

Parses $string for values, and construct a new object similar to the above three-argument form. The string should be in the form

 hue,saturation,lightnes

containing the three floating-point values in decimal notation.

METHODS¶

$h = $color->hue¶

$s = $color->saturation¶

$v = $color->lightness¶

Accessors for the three components of the color.

( $hue, $saturation, $lightness ) = $color->hsl¶

Returns the individual hue, saturation and lightness components of the color value.

SEE ALSO¶

•

Convert::Color - color space conversions

•

Convert::Color::RGB - a color value represented as red/green/blue

AUTHOR¶

Paul Evans <leonerd@leonerd.org.uk>