Oh so sweet! Such a simple little happy thing, I can see this cupcake in a little girl's room, making her smile. The pale yellow icing, robin egg blue background, and pinky peach sugar are all variations of the primary colors. And by using all three, (yes even a sprinkle of sugar counts), makes this a primary triad. A primary triad means all three primary colors are used, and a secondary triad is when all three secondary colors are used, they would be green, purple, and orange. Such a lot of talk for something so simple and pretty, enjoy!