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# whiteComponent

The white component value of the color.

```
var whiteComponent: CGFloat { get }
```

## Discussion

Access this property only for colors in the [`calibratedWhite`](/documentation/AppKit/NSColorSpaceName/calibratedWhite), [`NSCalibratedBlackColorSpace`](/documentation/AppKit/NSCalibratedBlackColorSpace), [`NSDeviceBlackColorSpace`](/documentation/AppKit/NSDeviceBlackColorSpace), or [`deviceWhite`](/documentation/AppKit/NSColorSpaceName/deviceWhite) color spaces. Accessing it for other color types raises an exception.

## See Also

[`getWhite(_:alpha:)`](/documentation/AppKit/NSColor/getWhite(_:alpha:))

Returns the grayscale and alpha values of the color.


---

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