Ultimately, it depends on the invitation and the nature of the event, but if youre still stuck, these color-matching guidelines are a failsafe: Neutrals: You can seldom go wrong with colors like black, white, gray, beige, and navy for smart casual attire, unless its a summer wedding or day-time event and then a pop of color is often encouraged
In the fall, we change our palette
Think soft colors (pastels over dark hues) or neutral shades, flowy fabrics like tulle or silk, floral prints and accents, and long gowns with more of a loose fit
For the foundational rules of the cocktail dress code that any color should respect, the guide to what a cocktail dress is covers the lengths and expectations