---
title: red
framework: metal
role: symbol
role_heading: Instance Property
path: metal/mtlclearcolor/red
---

# red

The red color channel.

## Declaration

```swift
var red: Double
```

## See Also

### Related Documentation

- [Metal Shading Language Guide](apple-archive/documentation/Metal/Reference/MetalShadingLanguageGuide/Introduction.md)
- [Metal Programming Guide](apple-archive/documentation/Miscellaneous/Conceptual/MetalProgrammingGuide/Introduction.md)