[chajin]

I’m told Japanese people think of a green traffic light as blue. The two colors get conflated.

There is a specific term for green in Japanese, midori, which is used for a deep green, as in the green of matcha.

The generic term is aoi, which is used both for green and for blue. For example, aoyama means "green mountain," but a blue pencil is aoi empitsu.

[married21]

Thank you for the explanation.