Designate Visited and Unvisited Links
To designate unvisited links, HHS must use the default blue text link color (#0000FF, RGB (0,0, 255)); to designate visited links, HHS must use the default purple link color (#800080, RGB (128,0,128)). For links that point to the same target, all links should change color to the default purple once the target site has been visited.
Link colors help users understand which parts of a Web site they have visited. Providing this feedback, according to several studies, helps improve users’ speed in finding information. In addition, this color convention is considered a common experience for users on the Web. By following long understood conventions, we reduce users’ confusion and improve their overall success rates.
Primary site navigation links that represent the major categories and topics of a site are exempt. This primary navigation is typically presented on the homepage and may be persistent across a Web site. Examples of primary navigation items include tabs and left, right, and middle panels (navigation bars). Graphic examples are provided below:
Evans, 1998; Nielsen and Tahir, 2002; Nielsen, 1996a; Nielsen, 1996b; Nielsen, 1996c; Nielsen, 2003; Spool, et al., 2001; Tullis, 2001.
Requirements (content & style): N/A
Provide Consistent Clickability Cues (V2, 10:8, p. 93)
Designate visited and unvisited links