The 12 secondary colors are
"shannon"
(defined as HEX #00A3E0),
"sky"
(defined as HEX #007DBA),
"stone"
(defined as HEX #2D5980),
"marine"
(defined as HEX #13294B),
"marigold"
(defined as HEX #FFC72C),
"golden leaf"
(defined as HEX #FFA300),
"pumpkin"
(defined as HEX #D45D00),
"munster"
(defined as HEX #CB333B),
"salmon"
(defined as HEX #E31C79),
"autumnal leaf"
(defined as HEX #6F263D),
"copper"
(defined as HEX #89532F),
"bronze"
(defined as HEX #7e5c4d),
"white"
(defined as HEX #FFFFFF),
"limestone"
(defined as HEX #919D9D),
"pebble"
(defined as HEX #707372),
"granite"
(defined as HEX #505759), and
"slate"
(defined as HEX #373A36).
limerick_2
uses the HEX color definitions.