Text - background polarity affects performance irrespective of ambient illumination and colour contrast.

@article{Buchner2007TextB,
  title={Text - background polarity affects performance irrespective of ambient illumination and colour contrast.},
  author={Axel Buchner and N Baumgartner},
  journal={Ergonomics},
  year={2007},
  volume={50 7},
  pages={1036-63}
}
In a series of experiments, proofreading performance was consistently better with positive polarity (dark text on light background) than with negative polarity displays (light text on dark background). This positive polarity advantage was independent of ambient lighting (darkness vs. typical office illumination) and of chromaticity (black and white vs. blue and yellow). A final experiment showed that colour contrast (red text on green background) could not compensate for a lack of luminance… CONTINUE READING