Adjust Color Temperature of Your Screen Using Terminal

There is a utility called “xsct” or screen color temperature for Debian-based systems which is super lightweight to install and very easy to use.

Open up a terminal and install it using below.

sudo apt install sct

Once installed, you can start using it anytime with just a command. Even you can use it for your shell script as well.

Syntax

sct [temperature]

 

What is Color Temperature

As per Wikipedia – “Color temperature is a characteristic of visible light that has important applications in lighting, photography, videography, publishing, manufacturing, astrophysics, horticulture, and other fields”. It has a value range from 1000k to 10000k (k = unit in Kelvin) which controls the display brightness.

In layman’s term, the default color temperature value of your monitor is 6500k. So, anything upwards e.g. 7000k, etc are “blue-ish” or “cooler” and downwards are “warmer” or “yellow-ish”.

Take a look at this chart (credit: Wikipedia).


 

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