苹果在 Cocoa 里提供了若干安全色方便开发人员，统一界面风格，可惜这些颜色只给了值参考，在此整理一下。
Xcode Version： 9.2 (9C40b)
Swift Version：4
| 名称 | RGB | 颜色 |
|---|---|---|
NSColor.black |
#000000 |
|
NSColor.brown |
#996633 |
|
NSColor.cyan |
#00ffff |
|
NSColor.darkGray |
#555555 |
|
NSColor.gray |
#808080 |
|
NSColor.green |
#00ff00 |
|
NSColor.labelColor |
#000000 |
|
NSColor.lightGray |
#aaaaaa |
|
NSColor.magenta |
#ff00ff |
|
NSColor.orange |
#ff7f00 |
|
NSColor.purple |
#7f007f |
|
NSColor.quaternaryLabelColor |
#000000 |
|
NSColor.orange |
#ff7f00 |
|
NSColor.white |
#ffffff |
|
NSColor.yellow |
#ffff00 |
|
NSColor.alternateSelectedControlColor |
#0069d9 |
|
NSColor.alternateSelectedControlTextColor |
#ffffff |
|
NSColor.controlBackgroundColor |
#ffffff |
|
NSColor.controlColor |
#e7e7e7 |
|
NSColor.controlHighlightColor |
#e2e2e2 |
|
NSColor.controlLightHighlightColor |
#ffffff |
|
NSColor.controlShadowColor |
#8d8d8d |
|
NSColor.controlDarkShadowColor |
#000000 |
|
NSColor.controlTextColor |
#000000 |
|
NSColor.disabledControlTextColor |
#000000 |
|
NSColor.gridColor |
#cccccc |
|
NSColor.headerColor |
#aaaaaa |
|
NSColor.headerTextColor |
#000000 |
|
NSColor.highlightColor |
#ffffff |
|
NSColor.keyboardFocusIndicatorColor |
#3b99fc |
|
NSColor.knobColor |
#9999bb |
|
NSColor.scrollBarColor |
#aaaaaa |
|
NSColor.scrubberTexturedBackground |
#ffffff |
|
NSColor.secondarySelectedControlColor |
#dcdcdc |
|
NSColor.selectedControlColor |
#b2d7ff |
|
NSColor.selectedControlTextColor |
#000000 |
|
NSColor.selectedTextColor |
#000000 |
|
NSColor.selectedKnobColor |
#666699 |
|
NSColor.shadowColor |
#000000 |
|
NSColor.systemBlue |
#1badf8 |
|
NSColor.systemBrown |
#a2845e |
|
NSColor.systemGray |
#8e8e91 |
|
NSColor.systemGreen |
#63da38 |
|
NSColor.systemOrange |
#ff9500 |
|
NSColor.systemPink |
#ff2968 |
|
NSColor.systemPurple |
#cc73e1 |
|
NSColor.systemRed |
#ff3b30 |
|
NSColor.systemYellow |
#ffcc00 |
|
NSColor.textBackgroundColor |
#ffffff |
|
NSColor.textColor |
#000000 |
|
NSColor.windowBackgroundColor |
#ececec |
|
NSColor.windowFrameColor |
#aaaaaa |
|
NSColor.windowFrameTextColor |
#000000 |
|
NSColor.underPageBackgroundColor |
#ffffff |