This dye can be obtained from Bone Meal or from a flower called Lily of the Valley. We prefer to search for Bone Meal and extract it to create White Dye.
Bone Dust can be obtained by fishing, as all fish can drop Bone Meal. You can also extract it from the bones you get or from the bone blocks. The bones can be found inside chests in dungeons, temples or the Woodland Mansion and of course, by eliminating Skeletons.
If you decide to go for the lily of the valley flower, it can be found in the flower forest biomes, although you can also create these flowers using bone meal on a grass block or soil in these biomes for a healthy supply.
Once you harvest the plant, you will be able to extract the dye.
Now that you know how to get the white dye in Minecraft, we invite you to review our article on the black dye, so that you also know how to get it when you need it.