A complementary color scheme uses colors that are opposites on tt color wheel, such as red and green. Complementary color schemes suggest tension and opposition among elements in a speech. Because they heighten the sense of drama, they may enliven informative speaking and encourage change in persuasive speaking.
The colors you use for text should always stand out from the background of your presentation aid. With poster board, it is best to use a white or cream- colored board and strong primary colors such as red, blue, and green, for contrast. For slides or projections, a light background can create glare. Therefore. you might want to use a strong primary color for the background and have the text or other graphic elements printed in white. Color contrast is especially important for computer-generated slides and transparencies, because the colors may wash out and appear less distinct when projected than they & when seen on a monitor. Colors like pink, light blue, and pale yellow may nx be strong enough for good graphic emphasis in any type of presentation aid.