Abstract
The rapid dissemination of the World Wide Web raises the issue of the Web accessibility, and one of the important things is the combination of a foreground color and a background color. In our previous study, the visibility of web-safe colors on the white background was examined, and the blue used for the standard link color was found high visibility in wide range of ages. Since the usage of the blue and an underline are recommended as a link, in this study, we examined high-visibility background colors to the standard link color, i.e. blue. One hundred and twenty three background colors to the blue were examined using pair comparison method, and the evaluation of standard link color visibility by CIE-Luv uniform color space. As the result, effective background colors to the standard link color were determined on the CIE-^*Luv, that is, L^* more than 67.6, u' less than 0.258, or L^* more than 67.6, v' larger than 0.421 provided high visibility in wide range of ages.
