Text Readability of Smartphone in Dark Mode: Effects of Font Type, Font Weight and Color

This study investigates the effects of font type, font weight, background color and font color on the readability of Chinese characters in dark mode of smartphone. Forty subjects participated in the experiment and completed the reading comprehension task. Readability was measured by reading time, accuracy rate and subjective ratings. The results show that font type, background color and font color have significant effects on readability, while the effect of font weight is not significant. The combination of Hei font type, 1:12 font weight, dark gray (H: 0, S: 50, B: 12) background color, and light gray (H: 0, S: 0, B: 58) font color results in optimal readability. The research results provide useful information for font design of Chinese characters in dark mode for smartphone.