A dark background floral dress reads as intentional for dinner in a way that light background florals do not. Navy floral, black floral, or deep jewel tone backgrounds keep the vibe evening-appropriate while still delivering the visual interest of a floral print. The dark background also means the dress photographs well in restaurant lighting. The color of the flowers matters too. Jewel tone flowers or cream and gold flowers on a dark background read as more sophisticated than bright primary color flowers. These are the floral dresses where the background color is doing the heavy lifting to make the print feel appropriate for the occasion.