int R = 0; int G = 0; int B = 255; // blue
int blue = 255; // 8 bit integer value for blueThe package library for using colors in C++ would depend on the specific application or framework being used. For example, if you are creating a GUI application, you might use the Qt library, which has its own set of color classes and functions. If you are creating a game engine, you might use a graphics library such as OpenGL or DirectX, which have their own ways of representing and manipulating colors.