Color is a powerful motivation and selling tool. We can also use color to improve people's performance. Color is comprised of hue, value and saturation. When selecting a color scheme for a web site or slide presentation select a pastel background, then a complimentary or contrasting secondary color for accents. Select black or neutral text. Avoid the jelly-bean syndrome of contrasting, saturated, adjacent colors that fatigue the eye. Instead, use bright colors only for accents, not for major areas.