The color (at least to me) doesn't actually look blue-green, but rather cyan-green. This "tertiary" color halfway between cyan and blue (#00FF80) is apparently called "spring green":
But equally, yellow is in the red direction from green, and surely yellow-green is different from red-green. Although... Perhaps "red-green" is just another name for yellow, and "blue-green" just another name for cyan.
https://en.wikipedia.org/wiki/Spring_green
I wonder whether there is a physiological explanation for this.