I would probably do dark paper with light lettering. Black and White Vintage-Inspired Blind Emboss Letterpress Save the Dates via Oh So Beautiful Paper:Design: Vellum Vogue
Let your wedding day shine with our romantic design, Garden Romance. This simple and classic wedding invitation mixes a romantic calligraphy font and simple block font to make subtle statement. This wedding invitation suite features a pretty blush pink floral envelope liner and pale pink custom dyed silk ribbon!