"Murasaki"="Yukari" "Yukari"="Yukarin" And the character for Yukari's name can also be read as "Murasaki."

In other words: Yu-karinrin, Yu-karinrin♪

Add "ki" to "Murasa" and you get "Murasaki." "Murasa"+"Ki"="Murasaki." "Murasaki" being the Japanese word for "purple."