- From: Chris Lilley via GitHub <sysbot+gh@w3.org>
- Date: Fri, 14 Feb 2025 17:14:49 +0000
- To: public-css-archive@w3.org
svgeesus has just created a new issue for https://github.com/w3c/csswg-drafts: == [css-color-hdr] New colorspaces do not have reference ranges == Unlike CSS Color 4, the color spaces in CSS Color HDR do not list reference ranges. This is particularly important for any polar spaces, to establish the ε for achromatic hues which depends on the extent of the reference range. - [`lab(50% 125 125)`](https://apps.colorjs.io/convert/?color=lab(50%25%20125%20125)&precision=4) = `color(ictcp 0.4048 -0.0495 0.4906)` = `color(jzczhz 0.1355 0.2217 33.3)` - [`lab(50% -125 125)`](https://apps.colorjs.io/convert/?color=lab(50%25%20-125%20125)&precision=4) = `color(ictcp 0.4032 -0.4135 -0.1191)` = `color(jzczhz 0.0895 0.2061 147.3)` - [`lab(50% 125 -125)`](https://apps.colorjs.io/convert/?color=lab(50%25%20125%20-125)&precision=4) = `color(ictcp 0.4476 0.3446 0.0327)` = `color(jzczhz 0.1535 0.1947 291.1)` - [`lab(50% -125 -125)`]() = `color(ictcp 0.4263 0.1046 -0.4513)` = `color(jzczhz 0.1067 0.4211 212.1)` Suggests that for `ICtCp` that `Ct` and `Cp` could range from say -0.4 to +0.4 and for `JzCzhz` that Cz could range from 0 to 0.26 ? Needs a more complete examination (the P3 primaries and secondaries all converted). Please view or discuss this issue at https://github.com/w3c/csswg-drafts/issues/11710 using your GitHub account -- Sent via github-notify-ml as configured in https://github.com/w3c/github-notify-ml-config
Received on Friday, 14 February 2025 17:14:50 UTC