Earlier quoted context omitted.
I'm also Red-green colourblind, and also use a mobile app to check RGB values of things! I also use a Windows traybar app that I wrote with Delphi about 15 years ago, which gives me a dropper I can use anywhere in the screen to see RGB values. I've also noticed that it's much more difficult to differentiate tones and colours of small objects. Cues were mentioned in the article, and I think I subconsciously rely on th…
You need to pass a color-blindness test to get a driving license in my home country and I can't tell you how much I struggled with it 15 years ago. The reason is exactly this -- I can work out traffic lights very easily although I'm r/g colorblind, however the test was about showing a number of different colors and asking you to name them. I failed, obviously, but the instructor did a favor and marked me as passed. I…
As a kid I always wanted to be a pilot, but to get a license you can't be colour-blind. I guess because light colours on runways and such confer meaning, or something like that.
I had no idea there were countries demanding this for a driving test though - I mean, it's not like they randomise the order of traffic lights!