---
title: whiteComponent
framework: appkit
role: symbol
role_heading: Instance Property
path: appkit/nscolor/whitecomponent
---

# whiteComponent

The white component value of the color.

## Declaration

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

## Discussion

Discussion Access this property only for colors in the calibratedWhite, NSCalibratedBlackColorSpace, NSDeviceBlackColorSpace, or deviceWhite color spaces. Accessing it for other color types raises an exception.

## See Also

### Related Documentation

- [getWhite(_:alpha:)](appkit/nscolor/getwhite(_:alpha:).md)

### Retrieving individual components

- [alphaComponent](appkit/nscolor/alphacomponent.md)
- [redComponent](appkit/nscolor/redcomponent.md)
- [greenComponent](appkit/nscolor/greencomponent.md)
- [blueComponent](appkit/nscolor/bluecomponent.md)
- [cyanComponent](appkit/nscolor/cyancomponent.md)
- [magentaComponent](appkit/nscolor/magentacomponent.md)
- [yellowComponent](appkit/nscolor/yellowcomponent.md)
- [blackComponent](appkit/nscolor/blackcomponent.md)
- [hueComponent](appkit/nscolor/huecomponent.md)
- [saturationComponent](appkit/nscolor/saturationcomponent.md)
- [brightnessComponent](appkit/nscolor/brightnesscomponent.md)
- [catalogNameComponent](appkit/nscolor/catalognamecomponent.md)
- [localizedCatalogNameComponent](appkit/nscolor/localizedcatalognamecomponent.md)
- [colorNameComponent](appkit/nscolor/colornamecomponent.md)
- [localizedColorNameComponent](appkit/nscolor/localizedcolornamecomponent.md)