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# itur_2020_HLG

The recommendation of the International Telecommunication Union (ITU) Radiocommunication sector for the BT.2020 color space, with the HLG transfer function.

```
class let itur_2020_HLG: CFString
```

## Discussion

This color space has the same colorimetry as [`itur_2020`](/documentation/CoreGraphics/CGColorSpace/itur_2020), but uses the Hybrid Log-Gamma (HLG) transfer function. Pixel values should be between `0.0` and `12.0`. See the current active version of the BT.2100 recommendation on the ITU website (<https://www.itu.int/>).

---

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