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Why so many control rooms were seafoam green (2025)

bethmathews.substack.com

91–100 of 218 posts

Re: Why so many control rooms were seafoam green (2025)

#91

While I am sure there are stylistic reasons for using that color, there is another common reason why you see blue-green colors in paint, especially in older industrial environments: zinc chromate/phosphate corrosion protective coatings. Zinc chromate primer is the color you see on the interior surfaces of some aircraft, to inhibit corrosion. Zinc phosphate is more of a gray in most cases, although varying paint chemi…

I remember reading a long time ago about why barns / shipping containers are dark red. and IIRC it's simply because it's a very similar tone to iron oxide and thus the dye was cheapest to produce.

Re: Why so many control rooms were seafoam green (2025)

#93
post #29

Earlier quoted context omitted.

I'm reminded of an article a while back talking about how the change from sodium streetlights to LED streetlights had a whole lot of unforeseen effects on animals, people's sleep patterns, driver awareness and visibility, etc. due to color changes. There was a comment on the article from an old civil engineer saying "no, these were not unforeseen, we actually did the research back in the day to figure out what color…

> that's why they were the color they were That doesn't seem right to me. Sodium (and mercury) vapor lamps are the color they are due to physics, and were chosen because they're very efficient (and long lasting). Low-pressure sodium is the best and worst of these; essentially monochromatic but fantastic efficiency. Their only advantage, color-wise, is that the light can be filtered out easily (they used to be widely…

The monochromatic light emitted from sodium lamps is also close to the peak sensitivity of the human eye. Colours are not distinguishable, but contrast is much enhanced compared to “cooler” light sources.

*edit: but it’s the overwhelmingly larger lifespan (20-30k hrs) that led to the wide adoption as streetlights. And I guess, the same is true for the change to led today, because of less power consumption.

Re: Why so many control rooms were seafoam green (2025)

#96
post #90

Earlier quoted context omitted.

Modern street lighting provides a way clearer view of the scene imo than the old sodium lighting. Maybe it's just brighter now.

It's about 100000x brighter and if your bedroom is next to a street lamp, good luck getting some sleep.

Blackout curtains.

Re: Why so many control rooms were seafoam green (2025)

#97
Thank you for this share, because it rings close to another fascination of mine: the shade of green/teal that is the panel color of a great many Soviet aircraft cockpits. It's not the same as the shade of these industrial control panels[1], but it seems to me that they are in a family together. I would include the Windows 95 default background color in that same family; I find it relaxing enough that I still use it today. :)

[1]https://www.google.com/images?q=soviet%20aircraft%20cockpits

Re: Why so many control rooms were seafoam green (2025)

#99
Between real jobs I once worked at a factory that paid the bare minimum wages, gave zero hour contracts and had the most unstable work hours I've ever seen. People who weren't needed showed up only to be send home, people who weren't planned for the day were suppose to be ready to jump in the entire day only to not be called for 3 weeks. They did shit like send one out of a team of 6 home just to see if 5 people could still do it. They would go out of their way to keep up for example for 2-4 hours but couldn't so someone else was called in for the last two hours.

I asked about the horizontal colored bars painted on the wall in the lunch room. It was the strangest selection of colors. Each bar about a fist width. It seemed someone went out of their way to invent the most boring bland colors possible.

They told me the factory had spend over 100 k on a color expert to increase productivity. Everyone who worked there for some time knew this.

I thought I'd observe the effect. Someone was released from the factory floor for 10 minutes because they by accident worked enough hours in a row to be entitled to a lunch break, in their own time of course.

They sat down at a table carefully positioned to look straight at the color bars. And then it started! I could see on their face their internal dialog as if talking with the hundred thousand euro color consultant. The sandwich went only half way up to their mouth and they slipped into a catatonic state looking at the colors.

It was facinating, I just had to see more. Turned out half the factory had this moment with this colored wall!

I didn't have to ask them what that expression was. I could look at the wall myself and the internal dialog stated immediately: How the fuck do they expect me to pay my bills if I have to wait by the phone all week but only get two 3 hour shifts? Why did they have to spend a hundred thousand on colors to make me more productive?

It was impossible to think anything else. It was almost a blessing to go back to the high speed conveyor belt. If I didn't see it myself I wouldn't believe color theory works in magical ways.

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