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Re: [css-color] wider/deeper colors

From: Chris Lilley <chris@w3.org>
Date: Tue, 16 Feb 2016 16:05:59 +0100
Message-ID: <871590243.20160216160559@w3.org>
To: Florian Rivoal <florian@rivoal.net>
CC: "Tab Atkins Jr." <jackalmage@gmail.com>, Dean Jackson <dino@apple.com>, www-style list <www-style@w3.org>
Hello Florian,

Tuesday, February 16, 2016, 12:36:37 PM, you wrote:
>> On Feb 16, 2016, at 18:06, Chris Lilley <chris@w3.org> wrote:
>> Or more generally, and sidestepping the issue of trademarked lists of
>> names, it would be good if "named color" profiles were supported.
>> Pantone happens to be one example which could be implemented like
>> that, technically, if the license conditions allowed it which they
>> don't.

> Sure, I'm am just taking Pantone as an example to illustrate the point.

Ok, just wanted to make it clear that the issues with pantone are
legal not technical.

> The remaining question is how would this be declared. Do ICC profiles
> have a way of defining named colors?

Yes, there is a particular type of profile called a named color
profile, which is what I was referring to above.

Instead of a set of curves and chromaticities (for an RGB profile) or
a set of Lab measurements of CMKY swatches (i.e a 4D lookup table, for
a CMYK profile), it consists of a one dimensional list of names
(strings) and colors in Lab or XYZ.


For an earlier run at specifying this, see
(note that SVG required an explicit sRGB fallback each time, which is
not needed here because CSS can express a fallback in the usual way).

Best regards,
 Chris  Lilley
 Technical Director, W3C Interaction Domain
Received on Tuesday, 16 February 2016 15:06:11 UTC

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