Here are some methods to color Easter eggs in a totally natural way.
Blue Eggs : Use purple cabbage or blueberries
Red Eggs : You can use the outer skin of red onions
Orange Eggs : The skin of yellow onions
Yellow eggs : use turmeric and they will be very yellow!
Pink Eggs : Red tea bags or red beets
Green Eggs : Use a bunch of spinach
Brown eggs : ground coffee
Purple eggs : blueberries (but if you leave them for a long time immersed in blueberries you will get blue!)
8 natural colors for a wonderful colorful Easter!
