Typically it's red or pink, but there are a lot of varieties around, including the pretty "Hot Lips", with a a red-lipped white flower.
Crushing a leaf unleashes a wonderful aromatic smell. Salvias generally have aromatic smells, attractive to humans but unpalatable to deer, and it's this feature that makes my hummingbird garden here in woods infested with deer possible. Here's Salvia guaranitica *** (the commonly-available selection "Black and Blue") again (see yesterday's post) in another great photo by Greg Olanoff.
To end up here's another cute photo from Greg. Note the golden pollen at the base of the bill.