Most eggs found in supermarkets are brown, but you can sometimes find white eggs round Easter time. The colour of the egg you start with will affect the final colour of the egg. Red cabbage will yield blue on white eggs, green on brown eggs. Beetroot results in pink on white eggs, maroon on brown eggs. Other colours will appear richer and more rustic-looking on brown eggs, such as turmeric, while white eggs will yield a brighter result.
The longer you let the eggs sit in the dye, the more intense the colour. In some cases, the colour will vary based on dyeing time. For example, beetroot and cranberry juice can yield pink eggs if dyed for a short time, while letting the eggs sit longer will result in red eggs. Similarly, spinach can result in eggs ranging from grey to green, so best to let eggs sit longer in the spinach dye for a vibrant green colour.