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al_color_rgb_to_hsl(3) al_color_rgb_to_hsl(3)

al_color_rgb_to_hsl - Allegro 5 API 


#include <allegro5/allegro_color.h>
void al_color_rgb_to_hsl(float red, float green, float blue,
   float *hue, float *saturation, float *lightness)

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.

al_color_hsl_to_rgb(3), al_color_hsl(3)
Allegro reference manual
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