Thanks for your reply.
Apple color Black Red = 0.0 Green = 0.0 Blue = 0.0
Apple color Blue Red = 0.0 Green = 0.0 Blue = 1.0
Apple color Brown Red = 0.600000023842 Green = 0.40000000596 Blue = 0.20000000298
Apple color Cyan Red = 0.0 Green = 1.0 Blue = 1.0
Apple color Green Red = 0.0 Green = 1.0 Blue = 0.0
Apple color Magenta Red = 1.0 Green = 0.0 Blue = 1.0
Apple color Orange Red = 1.0 Green = 0.5 Blue = 0.0
Apple color Purple Red = 0.5 Green = 0.0 Blue = 0.5
Apple color Red Red = 1.0 Green = 0.0 Blue = 0.0
Apple color Yellow Red = 1.0 Green = 1.0 Blue = 0.0
Apple color White Red = 1.0 Green = 1.0 Blue = 1.0
-- Created 2014-10-29 17:15:45 +1100 by Brian Christmas
-- © 2014 Brian Christmas, MeSelfSoftware
use AppleScript version "2.4"
use scripting additions
use framework "Foundation"
-- use framework "AppKit"
tell current application's NSColorList to set AppleColors to colorListNamed_("Apple")
tell current application to set colorKeysList to AppleColors's allKeys() as list
set colorDisplay to {}
repeat with x from 1 to count of colorKeysList
set theRequiredNSColor to (AppleColors's colorWithKey:(item x of colorKeysList))
set theRGBValuesToDisplay to "Apple color " & item x of colorKeysList & tab & "Red = " & theRequiredNSColor's redComponent() & tab & "Green = " & theRequiredNSColor's greenComponent() & tab & "Blue = " & theRequiredNSColor's blueComponent() as text
set end of colorDisplay to theRGBValuesToDisplay & return as text
end repeat
display dialog colorDisplay as text