Minecraft wiki entry for Void, associated text: The void is black in the Overworld and Nether, and purple in the End. In the Overworld, the void also appears as having daylight if the player views from above sea level (Y=63; feet level Y=61.38). In the Nether, similarly, the void appears as the same color with the biome fog, if the player views above lava sea level (Y=31; feet level Y=29.38).