Gimme Some Oven

PINK & YELLOW / Chef Mommy
PINK / Sweet Tart Smoothie Colourful Palete

PURPLE / Wild Blueberry Colourful Palete

BLUE / Breakfast Smoothie (blueberry flavor) Kaotic Kitchen

GREEN / Green Monster (spinach is the green color here) Pennies on a Platter

ORANGE / Grade A Smoothie (peach is the flavor and color here) Babble

WHITE / Pineapple, Banana, Coconut Make and Takes

I don't know why the recipe WHITE and YELLOW are different, it looks like the same recipe to me.
YELLOW / Pineapple, Banana, Coconut Gimmee Some Oven

BROWN / Nutella Banana recipe from Tasty Kitchen

Hip Hip Hooray


Another site with a few colorful smoothie recipes Glitter Guide