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Wikipedia reckons that the “go” light was originally blue. The colour became green to match the international convention, but the name didn't change. => https:
by grey_earthling 5y ago
Wikipedia reckons that the “go” light was originally blue. The colour became green to match the international convention, but the name didn't change.
=> https://en.wikipedia.org/wiki/Traffic_light#Variations https://en.wikipedia.org/wiki/Traffic_light#Variations
- 1auralynn 5y agoAlso, in the US lights used to be a pure green but were updated to be a blue-green so that color blind people could differentiate the green from red. You can still see the original green in some super old lights that haven't been updated.
- skhr0680 5y agoThat’s why no one should blindly trust Wikipedia. There’s no evidence for the Japanese “go” light ever having a blue color, the first traffic lights in Japan were imported from the US and the first Japanese traffic law to mention traffic lights called them 緑 (green) not 青 (green or blue depending on the context).