In a world without sight an apple would NOT be red

Reality is defined by perception. Can the blind perceive an apple as being red without any outside reference? If hypothetically the sense of sight were to become absent in an entire race the color red would become undefined if not irrelevant. One might even argue that although 'WE' see an apple as red, does not necessarily make it so. Our sole conclusion would only be based on sight which we then translate and interpret. Reality is not defined by interpretation therefore in a world without sight an apple would not be red.