---
title: "init(cgColorSpace:)"
framework: appkit
role: symbol
role_heading: Initializer
path: "appkit/nscolorspace/init(cgcolorspace:)-889nv"
---

# init(cgColorSpace:)

Initializes and returns a color space object initialized from a Core Graphics color-space object.

## Declaration

```swift
init?(cgColorSpace: CGColorSpace)
```

## Parameters

- `cgColorSpace`: A reference to a Core Graphics color-space object (doc://com.apple.documentation/documentation/CoreGraphics/CGColorSpace).

## Return Value

Return Value The initialized NSColorSpace object or nil if initialization was not successful, which might happen if the color space represented by the CGColorSpace object is not supported by NSColorSpace.

## Discussion

Discussion Because NSColorSpace might retain or copy the CGColorSpace object depending on circumstances, you should not assume pointer equality of the provided object with that returned by cgColorSpace. And even if the pointer equality is preserved during runtime, it may not be after the NSColorSpace object is archived and unarchived.

## See Also

### Initializing a Custom Color Space Object

- [init(colorSyncProfile:)](appkit/nscolorspace/init(colorsyncprofile:).md)
- [init(iccProfileData:)](appkit/nscolorspace/init(iccprofiledata:)-8rl9d.md)