It seems the hue we think of as teal tends to be more of an umbrella term than a specific color. We know it's generally considered blue-green but it can run the gamut of light blue to greenish gray. One person's teal may be another person's turquoise.
As colors tend to have faddish runs in design culture, teal had a brief one of its own recently. Teal is also a classic hue that never goes out of fashion.
The word itself comes from the Teal duck which displays the color on its head. Also below, a tropical sea, peacock feather, satellite view of a plankton bloom, and an agate rock give further proof of nature's own predilection for the hue.
In an environment of neutrals teal bangs up nicely.
Subject to the cycles of fashion Teal is also a classic that never goes completely out of fashion. Land's End and Abercrombie & Fitch will always have space for teal in their catalogs.
Part of teal's success as a fashion color has to do with its complimentary effect on the natural pinks of light skin. As you can see above, it seems to work with skin of any tone.
More teal and neutrals interplay:
Teal pumping up the vibe of an office space.
In a more traditional, low key setting:
And the slightly more garish: