Or, or rose, argent : choisir une couleur de dorure

Article en anglais — traduction à venir.
Gold foil suits warm palettes (blush, burgundy, navy) and traditional weddings. Rose gold skews modern and photographs beautifully. Silver and holographic foils work for winter and evening themes.
One practical note: foil needs contrast. It shines on dark or saturated stocks and disappears on white unless paired with a dark ink or colored paper.