Lighting color usually significantly affect human psychological responses, such as visual performance [1], color discrimination [2, 3] and visual workload [4]. To support the various purposes of a workplace, the lighting colors may vary; for instance, white light in used for general offices and yellow light for the etching process in photo areas of semi-conductor factories. Lin et al. [4] reported that both visual acuity and subjective visual fatigue were significantly affected by the lighting color. But there are insufficient studies on the effects of lighting color on visual performance. Illumination intensity is an important consideration in workstation design [5]. In addition to the effects of illumination intensity on screen luminance, the surface-reflected light also affects the chromaticity coordinates of colors [2]. Furthermore, under usual illumination conditions for working with a notebook computer screen, illumination intensity can vary greatly, e.g., in an office or outdoors. Thus, there is a need to further examine the effects of illumination intensity on visual performance. Chromaticity contrast (text color) is an important subfactor of color combination and can be an effective way of improving human-computer communication [1, 5, 6]. Though chromaticity contrast can improve visual performance, some color combinations may cause added visual problems due to chromatic aberration [7]. In summary, there is a lack of studies concerning the effects of lighting color, illumination intensity, and text color for both short-term and long-term visual tasks. Therefore, it is important to empirically evaluate the effects of lighting color, illumination intensity, and text color on visual performance.