Tag Archives: RGB

Manually reproduce flux on your monitor

I recently got a new job which uses a VDI infrastructure. We don’t have individual workstations, but rather terminal into a central server which serves us individual desktops. One unfortunate side effect of this configuration is that f.lux (which I’ve written about before) doesn’t appear to do anything. Research suggests that f.lux must talk directly to display hardware to work – no remote desktops.

A co-worker suggested fiddling with the monitor’s color settings to try and reproduce what f.lux does. I hadn’t thought of that before!

It turns out my monitors have  pre-built color temperatures, but the lowest they go is 5400k. My color temperature comfort level is more like 3400k, which as it turns out what most office lighting is.

The monitors allow me to manually select RGB percentages. The trick was translating 3400k (f.lux setting) to percentages of red, green, and blue. Searching Google for the RGB values of 3400k revealed this page, which had some helpful information. 3400k translates to the hex values #ffc184.

The last step was translating that hex to percentages. Googling “ffc183 in percentage rgb” revealed this link, which is what I wanted!

In short: 3400k in flux roughly equates to:

100% red
76% green
51% blue

Success! My eyes are much more comfortable now.