---
title: "ColorSyncProfileIsPQBased(_:)"
framework: colorsync
role: symbol
role_heading: Function
platforms: [iOS 16.0+, iPadOS 16.0+, Mac Catalyst 13.0+, macOS 10.13+, tvOS 16.0+, visionOS 1.0+, watchOS 9.0+]
path: "colorsync/colorsyncprofileispqbased(_:)"
---

# ColorSyncProfileIsPQBased(_:)

Returns a Boolean value indicating whether the profile uses ITU BT.2100 PQ transfer functions.

## Declaration

```swift
func ColorSyncProfileIsPQBased(_: ColorSyncProfile!) -> Bool
```

## See Also

### Inspecting color characteristics

- [ColorSyncProfileIsWideGamut(_:)](colorsync/colorsyncprofileiswidegamut(_:).md)
- [ColorSyncProfileIsHLGBased(_:)](colorsync/colorsyncprofileishlgbased(_:).md)
- [ColorSyncProfileIsMatrixBased(_:)](colorsync/colorsyncprofileismatrixbased(_:).md)
- [ColorSyncProfileEstimateGamma(_:_:)](colorsync/colorsyncprofileestimategamma(_:_:).md)
- [ColorSyncProfileVerify(_:_:_:)](colorsync/colorsyncprofileverify(_:_:_:).md)