Scientific Research

The following studies analyse the effectiveness of greyscale modes on reducing screen time and digital addiction.

True colors: Grayscale setting reduces screen time in college students

2020

Holte, A. J., & Ferraro, F. R.

This study provides the first major empirical evidence that switching a smartphone to greyscale significantly reduces screen time (by an average of ~38 minutes per day) and lowers social media usage by removing the visual rewards of colourful icons.

Suffering from problematic smartphone use? Why not use grayscale setting as an intervention!

2023

Wickord, L.-C., & Quaiser-Pohl, C.

Researchers found that greyscale interventions are particularly effective for 'habitual' users (scrolling out of boredom) and 'social' users, reducing daily screen time by roughly one hour. It acts as a 'nudge' by increasing the annoyance of using the device.

Ethical Disengagement in Mobile Games: The Effects of Loading Delay and Grayscale

2025

Nakamura, Y., et al.

This experiment demonstrated that a greyscale display significantly reduces player retention and daily playtime in mobile games. By removing vibrant aesthetic rewards, 'immersion' is broken, aiding in ethical disengagement.

Can greyscale phone screens reduce mobile use while driving and walking?

2025

Rahmillah, F. I., et al.

While greyscale reduced the frequency of drivers visually glancing at their screens, it did not significantly stop the physical habit of picking up the phone, suggesting it lowers visual distractibility but not deep-seated muscle memory.

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