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Re: [csswg-drafts] [css-color] add `xyy` and/or `xyz` functions

From: Chris Lilley via GitHub <sysbot+gh@w3.org>
Date: Sun, 25 Dec 2016 21:39:42 +0000
To: public-css-archive@w3.org
Message-ID: <issue_comment.created-269138435-1482701980-sysbot+gh@w3.org>
Thanks for describing your use case. Note the following:

> There are three files available for download. All are of the same 
format: six columns of Munsell hue, Munsell value, Munsell chroma, CIE
 x, y, and Y. The chromaticity coordinates were calculated using 
**illuminant C** and the CIE 1931 2 degree observer.

so these values cannot be used directly as xyY in any case - they 
would need chromatic adaptation to D65 for display, and to D50 for 
Lab. 

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Received on Sunday, 25 December 2016 21:39:44 UTC

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