"If" teal were a "variant of green", following the Cellar's color options line of labeling greens, it would be called "teal green".
Teal is labeled as teal.
The "description" of teal, for those who aren't familiar with the color, is bluish green to greenish blue as Wolf has so graciously pointed out (with supporting proof).
According to your line of thought, teal could just as easily be a "variant of blue".
