When you Order Brown Kraft Invitation Cards At PrintMagic, you get the option to use a White Mask below the CMYK colors and to enhance their effect. Since the paper stock is dark, all colors printed on it don’t look as bright as they should. Adding a white base helps bring their vibrancy back and that helps show crisp and sharp colors. Make sure your Mask file is in a vector form and the exact size as your custom design and to avoid any alignment problems while online invitation card printing.