Vivid blue with a pale blue head, this is a striking cocktail. It also packs a whopping 45ml (1½oz) of blue curaçao but is far from being a "disco drink"...
Maybe not recommended, but I colored the last 45 ml of my Pierre Ferrand Dry Curacao with one drop of blue food coloring. Visual result was a slightly more vivid, almost florescent blue. A little alarming... Enjoyed its expression of sweetness without additional syrup. A bit off balanced overall, but tasty enough.