Which of the following Color Format are a 17 defined colors under CSS 2.1?

maroon (#800000)
red (#ff0000)
orange (#ffA500)
yellow (#ffff00)
olive (#808000)
purple (#800080)
fuchsia (#ff00ff )
white (#ffffff)
lime (#00ff00)
green (#008000)
navy (#000080)
blue (#0000ff)
aqua (#00ffff)
teal (#008080)
black (#000000)
silver (#c0c0c0)
gray (#808080)
Other color keywords may be commonly used but are ad hoc in their definition.