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sRGB Appearance profile

An sRGB Appearance profile has been developed, and has been tested internally and externally.

This profile is a v4 replacement for commonly used sRGB v2 profiles. It gives better results in workflows that implement the ICC v4 specification, and is intended to be used in combination with other ICC v4 profiles.

The ICC specification allows there to be more than one Perceptual Rendering from a given source colour space. For sRGB, ICC provides the Preference and Appearance profiles, both of which provide standard color transforms from sRGB to the perceptual reference medium gamut (PRMG). These two color profiles can be thought of as re-targeting and re-purposing as described in ICC White Paper 02. The difference between these two profiles is in the Perceptual Rendering; other Rendering Intents are the same. A full description and intended use for the sRGB v4 ICC preference profile is described in ICC White Paper 26.

The features of the Appearance Profile are that it:

  • May be used as re-targeting in perceptual rendering intent.
  • Produces more color-consistent results in color reproduction on display.
  • Produces more pleasing results in appearance and tone scaling for most images than Colorimetric Rendering.
The Appearance profile is particularly recommended when the difference between source gamut and destination gamut is large and it is desired to 're-purpose' the image (i.e. make it optimal for the reproduction medium - see ICC White Papers 1 and 2 for more on re-purposing and re-targeting of color).

For more information on the ICC sRGB Appearance Profile, please see ICC White Paper 42.

Terms of use

To anyone who acknowledges that the file "sRGB_ICC_v4_Appearance.icc" is provided "AS IS" WITH NO EXPRESS OR IMPLIED WARRANTY, permission to use, copy and distribute these file for any purpose is hereby granted without fee, provided that the files are not changed including the ICC copyright notice tag, and that the name of ICC shall not be used in advertising or publicity pertaining to distribution of the software without specific, written prior permission. ICC makes no representations about the suitability of this software for any purpose.

[Updated 7 June 2016. B2A0 table updated for better handle colours outside of PRM Gamut; A2B1 and B2A1 tables updated to conform to IEC 61966-1 (sRGB) 2014 corrigendum.]