RitzburyGD3 wrote:i think it has to do with red being far off the colour spectrum. some weird nonsense about how red is not as visible as other colours such as yellow or white. notice how fire trucks and emergency vehicles are going to the colour yellow?
don't quote me on any of that, but i think it's proved by science big shots that red is not as visible right away.
That's actually the exact opposite of the truth. Red is the single highest impact color to the human eye, it is the first color that we are able to pick out, especially when things start to come out of your peripheral vision. Right now I'm looking at my screen and I can tell you that, while most thing in my periph are very blurred, and just look like "something", I can VERY clearly see my orange nalgene bottle contrasting against the black mass of computers above me.
This is also why the company I used to work for made us wear red shirts... so we'd be easy to pick out.
Purple is actually the hardest color to see, because it is on the end of the spectrum where UV light is, and excites our rods and cones the least.
Some fire departments paint their trucks yellow, yes, but it's not for visibility reasons. Also, still the majority of emergency vehicles in the US (at least as far as ambulances and fire trucks go) are still red.