Studies within the last ten years have led researchers to believe that color plays a valuable role in the illustration of concepts. Learner retention and comprehension have proven to be impacted by the use of color images. Boring and ineffective. Although it may be an obvious assumption to say that color is an effective tool, more research in this area is needed in response to the complexity of the learning process.
Readers have color preferences.
Extra colors have to be used sparingly and consistently if they are not to confuse readers Certain combinations of colored inks on colored paper are more legible than others. For example, black or dark navy text on white or pale yellow backgrounds are more preferable than red text on these colored backgrounds. Black ink on purple or dark red paper creates a strain on the eyes and should be avoided. Light greens and grays, beige, and off-white are good choices for background colors as they are soothing and relaxing, not harsh. Bold tones such as bright reds and royal blues are stressful and should be confined to artwork and visual displays.