There are several issues related to text
characteristics that can help ensure a Web site communicates effectively with users:
• Use familiar fonts that are at least 12-points;
• Use black text on plain, high-contrast backgrounds; and
• Use background colors to help users understand the grouping of related information.
Even though it is important to ensure visual consistency, steps should be taken to emphasize important text. Commonly used headings should be formatted consistently, and attention-attracting features, such as animation, should only be used when appropriate.
Research-Based Web Design & Usability Guidelines
Use Black Text on Plain, High-Contrast Backgrounds
Guideline: When users are expected to rapidly read and understand prose text, use black text on a plain, high-contrast, non-patterned background.
Comments: Black text on a plain background elicited reliably faster reading performance than on a medium-textured background. When compared to reading light text on a dark background, people read black text on a white background up to thirty-two percent faster. In general, the greater the contrast between the text and background, the easier the text is to read.
Sources: Boyntoin and Bush, 1956; Bruce and Green, 1990; Cole and Jenkins, 1984; Evans, 1998; Goldsmith, 1987; Gould, et al., 1987a; Gould, et al., 1987b; Jenkins and Cole, 1982; Kosslyn, 1994; Muter and Maurutto, 1991; Muter, 1996; Scharff, Ahumada and Hill, 1999; Snyder, et al., 1990; Spencer, Reynolds and Coe, 1977a; Spencer, Reynolds and Coe, 1977b; Treisman, 1990; Williams, 2000.
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