Bright blue, citrusy, and refreshing, the Aqua Velva cocktail is a delightful drink from the 1980s. It’s known for its bold color, which comes from blue curaçao, and its refreshing flavor combination of vodka, gin, and lemon-lime soda. This cocktail was famously featured in the film Zodiac and has gained cult status as a fun, easy-to-make drink with a visual pop.