Vibrant orange is a color od design. Just take a look at the covers of relevant books. But more importantly orange is warm, cheerful, full of sun and energy.
But when it comes to yarns, orange is often hard to get. It is often missing in many series palettes. I searched some time and chose Scheepjes Cahlista 281 (100% cotton) in the end. This series has an enormous number of different colors, including a pair of oranges to choose from.