---
title: "init(red:green:blue:alpha:)"
framework: metal
role: symbol
role_heading: Initializer
path: "metal/mtlclearcolor/init(red:green:blue:alpha:)"
---

# init(red:green:blue:alpha:)

Returns a new color structure with the specified red, green, blue, and alpha values.

## Declaration

```swift
init(red: Double, green: Double, blue: Double, alpha: Double)
```

## Parameters

- `red`: The red color channel.
- `green`: The green color channel.
- `blue`: The blue color channel.
- `alpha`: The alpha channel.