al_color_rgb_to_xyy - Man Page

#include <allegro5/allegro_color.h>

void al_color_rgb_to_xyy(float red, float green, float blue,
   float *x, float *y, float *y2)

Convert RGB values to xyY color space.

5.2.3

al_color_xyy(3), al_color_xyy_to_rgb(3)

al_color_xyy(3), al_color_xyy_to_rgb(3).