In the latest version of Minecraft, these particle effects will be gray. You will also see particle effects floating around you. When you have the Invisibility effect, the following icon will appear in the top right corner of your screen (in older versions of Minecraft, the effect icons only appears when you are viewing the inventory menu): Gray particle effects appear floating around you When you are invisible, others will be able to see the particle effects floating around you but they won't be able to see you
