- From: Chris Lilley <Chris.Lilley@sophia.inria.fr>
- Date: Tue, 2 Dec 1997 07:35:09 +0100 (MET)
- To: "John Murray" <jmurray@fail.com>, "WWW Style" <www-style@w3.org>
On Dec 1, 9:59pm, John Murray wrote: > >From the point of view of the user [ie the person specifying > colors in a particular interface], a facility must be available to > imitate ANSI color specification standards. > > An RGB-only standard does NOT address this issue at all. Really ... ? > ANSI specifications are addressed in terms of the Munsell System, > with CIE 1931 equivalents. See for example the ANSI > Safety Color Code - Standard Z535.1. There's a picture of > the CIE Chromacity digram at the following URL: > <http://cybertheater.com/Tech_Reports/Envir_Light/cie.html> Yes, so the corrected Munsell system could be readilly converted to CIE XYZ and thence to sRGB. What in particular is NOT being addressed? > The HSL format provides a better means of approximating > this standard approach to color specification. Splutter. HSL has nothing to do with it. > It allows better > construction of interface design tools that match the color > specs used in content experts' environments, Erm, if the users are using tools then the tools can present any interface that is convenient and the tool can convert to a single canonical representation. The point of the HSL suggestion is that users with plain text editors find it easier. I have shown earlier todaythat this is not necessarily the case and that HSL has some well-known HCI flaws which render it less than suitable; these have been known about for the last 20 years or so. -- Chris Lilley, W3C [ http://www.w3.org/ ] Graphics and Fonts Guy The World Wide Web Consortium http://www.w3.org/people/chris/ INRIA, Projet W3C chris@w3.org 2004 Rt des Lucioles / BP 93 +33 (0)4 93 65 79 87 06902 Sophia Antipolis Cedex, France
Received on Tuesday, 2 December 1997 01:35:30 UTC