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al_color_rgb_to_hsl(3)                                  al_color_rgb_to_hsl(3)

NAME
       al_color_rgb_to_hsl - Allegro 5 API

SYNOPSIS

              #include <allegro5/allegro_color.h>

              void al_color_rgb_to_hsl(float red, float green, float blue,
                 float *hue, float *saturation, float *lightness)

DESCRIPTION
       Given an RGB triplet with components in the range 0..1, return the hue
       in degrees from 0..360 and saturation and lightness in the range 0..1.

SEE ALSO
       al_color_hsl_to_rgb(3), al_color_hsl(3)

Allegro reference manual                                al_color_rgb_to_hsl(3)