Avoid setting them in all caps. Use subheads to help readers find what they are looking for. It can be subtle, obnoxious, muted, bright, minimal, overdone, harmonious, distracting, beautiful, or ugly. It can scream or whisper, repel or seduce. When properly-used, color can make a document easier to read.
Color tends to evoke certain emotions in readers.
It is wise to consider what effect a color will have on your reader prior to using it in your document. The ease of placing clipart into projects and the plethora of clipart images available has led to the over use of decorative images. The best images are ones that help the reader understand the message, not ones placed on the page for decoration. Using a decorative image that is unrelated to the message may weaken the message. Don t let the fun of being creative take away from the main focus of communicating effectively.