Turmeric creates a vibrant yellow colour.
It produces a deep pink-to-red hue.
Blueberries yield a bluish-purple colour.
Red cabbage provides a blue colour when boiled with water and vinegar.
Boiling onion skins gives a golden-orange hue to the eggs.
Boiled carrot tops can produce a yellow-green colour.
To use these natural dyes, you can simmer the dye materials in water with a bit of vinegar for about 20-30 minutes. Then, strain the liquid and let it cool before submerging hard-boiled eggs in them. The longer you leave the eggs in the dye, the deeper the colour will be.