---
title: blueGain
framework: avfoundation
role: symbol
role_heading: Instance Property
path: avfoundation/avcapturedevice/whitebalancegains/bluegain
---

# blueGain

The blue gain component of the white balance value.

## Declaration

```swift
var blueGain: Float
```

## See Also

### Isolating gain by color channel

- [greenGain](avfoundation/avcapturedevice/whitebalancegains/greengain.md)
- [redGain](avfoundation/avcapturedevice/whitebalancegains/redgain.md)