Font color Here the operative words are simple and contrast. Black on white, a dark color on white, and white or yellow on black all look good because they have great contrast and are easy to read. Use only one color of font per presentation unless you want to show emphasis or surprise. Never use light-color type on a light-color background or dark-color type on a dark-color background—for example, light blue on yellow or red on black just won’t be easy to read.
