It's hard to see, but the main portion of the card is stamped with the Canvas background using the same color ink as the paper. Then I took the blue hue and stamped the background with the French Script background.
Stamps: Sincere Salutations, Canvas, French Script, Baroque Motifs
Paper: Brocade Blue, Old Olive, White
Inks: Brocade Blue, Old Olive, Black