First of all... it is an adorable word. It reminds me of fairies and stars and glitter.
Second... what a great color!! Periwinkle is a dusky blue-purple-grey color. So beautiful subhanAllah.
Periwinkle flowers have this color and so does one of my favorite gems, tanzanite!
When I graduated from high school my parents bought me a tanzanite ring. It is so lovely mashaAllah but still too big for me :-P
What is your favorite color?