All entities upon the circle are unique unto themselves. All entities travel reality within a machine of various degrees of color. All machines carry a portion of God, irrespective of the color of the machine. All machines carry a soul, which has no color. All souls are companions through God, through a commonality of being souls, portions of God Itself, portions of each other.
Color is one of the more simplistic concepts in nature.
Perhaps, but still no different. A man, a woman are both on opposite sides of the circle. Both are more than physical appearance, composed of obvious external characteristics. Yet each also has the more subtle, invisible inner maleness and femaleness. Various degrees of differences range from the physical in appearance to the emotional in attraction.