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International Orange
- et-al 4y agoI wonder if this shade of reddish-orange suffers from the Purkinje effect, where reds appear darker to the human eye in low light settings. https://en.wikipedia.org/wiki/Purkinje_effect https://en.wikipedia.org/wiki/Purkinje_effect
- jabl 4y agoSomething close to this international orange / safety orange is used for safety equipment on ships. Lime yellow has become popular on fire trucks, ambulances, and similar. See https://www.apa.org/topics/safety-design/fire-engine-color-safety https://www.apa.org/topics/safety-design/fire-engine-color-s...
- techdragon 4y agoWhich is at the end of this article for some additional colour info https://en.wikipedia.org/wiki/Lime_(color)#Lime_green https://en.wikipedia.org/wiki/Lime_(color)#Lime_green
- spuz 4y agoInterestingly, HN's orange is almost exactly halfway between the aerospace International Orange and Safety Orange.
- Raed667 4y agoAlso the most used color for SMBs (surface marker buoy) when scuba diving. Interestingly, the bright yellow color usually means accident, while orange means regular decompression stop. I have seen pink ones but they seem very rare. So I'm guessing people must think yellow is more visible? https://en.wikipedia.org/wiki/Surface_marker_buoy https://en.wikipedia.org/wiki/Surface_marker_buoy
- dahdum 4y agoI've seen plenty of yellow sausages that didn't mean emergency, I think that's location specific (I'm not sure where it applies). Most people I know pick the color based on personal preference / color matching the rest of the gear.
- Raed667 4y agoI've only done some diving in the Mediterranean (south of France). And the orange/yellow colors is the "recommended" advice I got from the local dive shops and the common understanding in the diving boats I've been on. It a shame that CMAS, PADI or SSI don't propose a standard.
- chrishawes 4y agoI’ve started seeing more black DSMBs recently. They’re meant to be very visible, but every skipper I’ve spoken to disagrees. When I’m doing project diving, we’ll use a pink DSMB to mark something that we want to go back to, and not surface with it. Orange for surfacing and yellow for an emergency, as you describe.
- Raed667 4y agoI feel like there is a market for black "tactical" DSMBs for those dudes who really like to be special ops. And what better color than full black to mean serious operator! /s
- d1sxeyes 4y agoWhen you have high levels of confidence that the background will be ocean water and the weather is likely to be decent (or at least, decent enough to be diving), then it may be the case that yellow is more visible. International Orange is designed to be maximally visible under as many different conditions as possible, so may not be the most visible in every single circumstance.
- JasonFruit 4y agoI've often wished that more vehicles were available in these highly visible colors. I really don't like driving a gray van on a gray road in the rain.
- bmurray7jhu 4y agoSo did I, so I wrapped my car orange: https://photos.app.goo.gl/ru4EBj1SibVu1sqj6 https://photos.app.goo.gl/ru4EBj1SibVu1sqj6
- jtbayly 4y agoAlright, I just added Google Photos to the list of links I won’t click anymore. What purpose does it serve to break the back button?
- Gibbon1 4y agoBecause google wants to choose what you see and where you go next. The back button is an escape. So they don't want that to work.
- lm28469 4y agoIt works fine on chrome and firefox for me
- jtbayly 4y ago(I’m on iOS.)
- lm28469 4y agoLooks like it only breaks on safari/ios Works fine on windows on all browsers, works fine on osx with chrome/firefox, doesn't work with safari though
- philposting 4y agoThe back button also breaks for me on macOS Safari.
- jtbayly 4y agoWhy is International Orange (engineering) red instead of orange?
- yreg 4y agoHow do you define the line between orange and red?
- CUViper 4y agoIf pure red is at 0° hue, and orange at 30°, then that engineering value at 3° is much closer to red. The other two at 18° and 19° better fit the reddish-orange description, still more orange than red, while safety orange is up at 28°.
- TeMPOraL 4y agoI'm going to guess it's path dependence, as usual: that 3° hue is called "orange" because it came from iterating on other hues that were more orange.
- OscarCunningham 4y agoIf you ask people to select a pure red that isn't tinted towards either orange or purple, then on average they say somewhere around -15°. So 'computer' red at 0° is a little bit orange compared to that.
- yreg 4y agoFrom now on, my HN top color is International Orange.
- infinet 4y agoAre these orange colors easily recognizable by color blindness?
- fwlr 4y agoWhen it comes to colorblindness, it doesn’t make much sense to ask if a single color is recognizable. Color blindness is a difficulty in distinguishing between different colors - some pairs of colors that are visibly contrasting to normal sight may not be visibly contrasting to colorblind sight, such as red/brown, brown/green, and red/green. There are three main mechanisms of colorblindness, corresponding to the three main types of light receptors in the eye: deutan (green-weak), protan (red-weak), and tritan (“blue-weak”, although this is not a common term). About three quarters of color vision issues are deutan, one quarter is protan, less than 1% is tritan. When you go out into the world and start interacting with contrasting color pairs, both green-weak and red-weak color vision cashes out as “red-green colorblindness”, while blue-weak cashes out as “blue-green colorblindness”. None of these have issues distinguishing yellow/orange from blue. Presumably this is actually the motivation for the international air safety color being orange, as it’s easily distinguishable from blue sky.
- eru 4y agoTo add an anecdote to your great general explanation: I'm red-green colour blind, and I can see the International Orange against most backgrounds. Keep in mind that I can judge saturation and brightness just fine, and that's a big part of what makes that shade of orange stand out.
- d1sxeyes 4y agoA further anecdote, I am also (slightly, not absolutely) red-green colour blind. Although I can distinguish between bright reds and greens, darker shades or in lower lights, I am unable to discern between reds and greens. I'm not always aware that there is a colour I have not correctly perceived, and may simply think that a colour is 'brown', where others clearly perceive it as red or green. However, it's very rare that this causes me problems. I suppose electrical work in low light might be risky, but then I would be taking extra steps to ensure I did not screw up (increasing lighting, asking someone to double check before I touch anything, etc.).
- aaron695 4y ago[dead]
- viraptor 4y agoIt's also an international "you can interact with this" colour for games (handles, climbable pipes, valves, ...)
- eru 4y agoDepends a bit on which game. Eg the Tomb Raider reboot uses white for climbables.
- lisper 4y agoFun fact: the color commonly called "brown" is really just dark orange. https://www.youtube.com/watch?v=wh4aWZRtTwU https://www.youtube.com/watch?v=wh4aWZRtTwU
- trustingtrust 4y agoThe article shows orange space suit. Interesting to me cause an orange suit on mars is probably not a good idea. A while suit on moon is also not. If you want to tell objects apart then maybe you need a per planet colour for a space suit ?
- ceejayoz 4y agoWhite is fine on the moon; every person who walked on the Moon wore a white suit. The Moon looks light colored to us on Earth, but its albedo is about 0.14, which is roughly the same as worn asphalt or dirt.
- GauntletWizard 4y agoThe orange space suits aren't worn in space, nor were they worn on the moon. Armstrong and Aldrin wore white, despite the moon being a bright gray. These are for recovery operations on Earth.
- yencabulator 4y agoThe white of lunar and EVA suits is white because of temperature regulation reasons, and is very unlikely to change.
- 1letterunixname 4y agoSchool bus yellow isn't the most visible color. There were some school buses and some customized buses that use(d) a fluorescent yellow-green color similar to safety vests. Also, microprismatic reflective tape can retrofit a bus to be more visible under low-light conditions.
- corbulo 4y agoThe ingrained psychological/emotional reaction between international and safety orange is pretty interesting for such a minute difference.
- amai 4y agoNot to confuse with https://en.m.wikipedia.org/wiki/Safety_orange https://en.m.wikipedia.org/wiki/Safety_orange, which by coincidence(?) is also the brand color of the french Orange group: https://www.brandcolorcode.com/orange https://www.brandcolorcode.com/orange