---
title: blue
framework: IOKit
role: symbol
role_heading: Instance Property
platforms: [Mac Catalyst 13.0+, macOS 10.0+]
path: iokit/iocolorentry/1505830-blue
---

# blue

Value of blue component 0-65535.

## Declaration

```occ
IOColorComponent blue;
```

## See Also

### Fields

- [index](iokit/iocolorentry/1505706-index.md)
- [red](iokit/iocolorentry/1505899-red.md)
- [green](iokit/iocolorentry/1505128-green.md)