Abstract
The improvement of the accessibility is important in all the people to be able to use the Internet. In our previous study, we investigated the effect of luminance contrast on the perception and cognition process, and reported that the readability decreased as the luminance contrast decreased. However, it is possible that not only the luminance contrast but also the color difference affects readability. In this report, we investigated the effect of color difference on the perception and cognition process using EOG(Electro-oculogram) and EEG(Electroencephalogram) analysis. In particular, we examined the readability when chromatic characters of the same luminance were used on a white background. As a result, it was shown that color difference and saturation affect readability. In particular, it was shown that when character colors of the same luminance were used on a white background, the readability of character colors with wavelengths with high relative luminosity was improved. Considering the effect of luminance contrast on the perceptual cognitive process, it was shown that the combination of character colors with high readability on a white background is a character color with a large luminance contrast and a high relative luminosity.
