---
title: kCGImagePropertyColorModelGray
framework: imageio
role: symbol
role_heading: Global Variable
path: imageio/kcgimagepropertycolormodelgray
---

# kCGImagePropertyColorModelGray

A grayscale color model.

## Declaration

```swift
let kCGImagePropertyColorModelGray: CFString
```

## Discussion

Discussion Use this value with the kCGImagePropertyColorModel key.

## See Also

### Color Information

- [kCGImagePropertyHasAlpha](imageio/kcgimagepropertyhasalpha.md)
- [kCGImagePropertyNamedColorSpace](imageio/kcgimagepropertynamedcolorspace.md)
- [kCGImagePropertyProfileName](imageio/kcgimagepropertyprofilename.md)
- [kCGImagePropertyColorModel](imageio/kcgimagepropertycolormodel.md)
- [kCGImagePropertyColorModelRGB](imageio/kcgimagepropertycolormodelrgb.md)
- [kCGImagePropertyColorModelCMYK](imageio/kcgimagepropertycolormodelcmyk.md)
- [kCGImagePropertyColorModelLab](imageio/kcgimagepropertycolormodellab.md)