---
title: b3
framework: swiftui
role: symbol
role_heading: Instance Property
path: swiftui/colormatrix/b3
---

# b3

## Declaration

```swift
var b3: Float
```

## See Also

### Third column

- [r3](swiftui/colormatrix/r3.md)
- [g3](swiftui/colormatrix/g3.md)
- [a3](swiftui/colormatrix/a3.md)