Allegro 5 api
#include <allegro5/allegro_color.h> ALLEGRO_COLOR al_color_hsl(float h, float s, float l)
Return an ALLEGRO_COLOR(3alleg5) structure from HSL (hue, saturation, lightness) values.
al_color_hsl_to_rgb(3alleg5), al_color_hsv(3alleg5)