# File lib/gd2/color.rb, line 79
    def initialize(r, g, b, a = ALPHA_OPAQUE)
      r = self.class.normalize(r, RGB_MAX, :red)
      g = self.class.normalize(g, RGB_MAX, :green)
      b = self.class.normalize(b, RGB_MAX, :blue)
      a = self.class.normalize(a, ALPHA_MAX, :alpha)

      init_with_rgba(self.class.pack(r, g, b, a))
    end