II.B - A few standards for files

Here is a list of some standards associated with common files.

Not all the technical possibilities for each type of file are listed here, only the most common (and standard) are indicated.

While these lists are not necessarily official standards, these correspondences are standardized by usage.

Image formats (Jpeg, PNG, TGA, TIFF…)


It’s possible to see PNG HDR which use the color space Rec.2020.



The beauty of the EXR is that it can store colors in a floating format instead of the usual integer format, so there is no need to use integer versions of the depth. It is because of this “float” format that the EXR can store any color data without loss: it also stores colors outside the workspace (whose values are greater than 1).


It should actually be understood that the color space in an EXR file doesn’t matter: the file stores raw data, which isn’t “clamped” (values above 1, the theoretical maximum of a color space, are possible); an EXR file can therefore store colors outside the gamut* and of the luminosity* of its color space.

MP4 h.264 / h.265 / AVCHD / HEVC and other HD videos (2K) or UHD (4K)

SWF (and others web formats)

Be careful, Adobe After Effects (at least some versions), imports it in Rec.709 instead of sRGB. It is then necessary to change the interpretation manually.

QuickTime Animation / RLE

Sources & References


  1. The TIFF allows many different color spaces, including CMYK and CIE Lab for example, and also the YUV format in a less standard way.