The fabric of yellow long prom dresses or cocktail dresses is one of those that can make or break your prom look. Lace and satin are two of the most favored ones for formal events like prom, and both scream elegance. Choosing between the two is a matter of preference. A delicately embellished yellow lace prom dress would give a feminine touch; it often comes with unique details that add extra visual interest. As for a yellow satin prom dress, the smooth and lustrous texture of the fabric makes it look effortlessly expensive, and it drapes gracefully on your body.