The map above is clustered into three groups depending on religious adherence: Magenta — the ‘Christian World’, Cyan — the ‘Muslum World’, and Yellow — the ‘Eastern World’. The darker the color, the higher the percentage of religious adherence. By total population: Magenta/Christians 2.4 billion (33%), Cyan/Muslim 1.8 billion (24%), and Yellow/Eastern 2.1 billion (29%)