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[css-color-5][css-color-4] Consistent mention of display-p3-linear in color(...) syntax #14024

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[css-color-5][css-color-4] Consistent mention of display-p3-linear in color(...) syntax #14024

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[css-color-5][css-color-4] Consistent mention of `display-p3-linear` …
romainmenke Jun 7, 2026
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consistency
romainmenke Jun 7, 2026
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95 changes: 49 additions & 46 deletions css-color-4/Overview.bs
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Original file line number Diff line number Diff line change
Expand Up @@ -4194,66 +4194,69 @@ The Predefined Display P3 Color Space: the ''display-p3'' keyword</h3>
<h3 id="predefined-display-p3-linear">
The Predefined Linear-Light Display P3 Color Space: the ''display-p3-linear'' keyword</h3>

<dl dfn-type=value dfn-for="color()">
<dt><dfn>display-p3-linear</dfn>
<dd>
The ''display-p3-linear'' predefined color space
is the same as ''display-p3''
<em>except</em> that the transfer function
is linear-light (there is no gamma-encoding).

The <dfn id='display-p3-linear-space' export>display-p3-linear</dfn> predefined color space
is the same as ''display-p3''
<em>except</em> that the transfer function
is linear-light (there is no gamma-encoding).

It has the following characteristics:
It has the following characteristics:

<table id="prr-color-display-p3-linear">
<thead>
<table id="prr-color-display-p3-linear">
<thead>
<tr>
<td></td>
<td>x</td>
<td>y</td>
</tr>
</thead>
<tr><th>Red chromaticity</th><td>0.680</td><td>0.320</td></tr>
<tr><th>Green chromaticity</th><td>0.265</td><td>0.690</td></tr>
<tr><th>Blue chromaticity</th><td>0.150</td><td>0.060</td></tr>
<tr><th>White chromaticity</th> <td colspan="2">[=D65=]</td></tr>
<tr><th>Transfer function</th><td colspan="2">unity, see below </td></tr>
<tr><th>White luminance</th><td colspan="2">80.0 cd/m<sup>2</sup></td></tr>
<tr><th>Black luminance</th><td colspan="2">0.80 cd/m<sup>2</sup></td></tr>
<tr><th>Image state</th><td colspan="2">display-referred</td></tr>
<tr>
<th>Percentages</th>
<td colspan="2">Allowed for R, G and B</td>
</tr>
<tr>
<th>Percent reference range&nbsp;</th>
<td>for R,G,B: 0% = 0.0, 100% = 1.0</td>
</tr>
</table>
<tr><th>Red chromaticity</th><td>0.680</td><td>0.320</td></tr>
<tr><th>Green chromaticity</th><td>0.265</td><td>0.690</td></tr>
<tr><th>Blue chromaticity</th><td>0.150</td><td>0.060</td></tr>
<tr><th>White chromaticity</th> <td colspan="2">[=D65=]</td></tr>
<tr><th>Transfer function</th><td colspan="2">unity, see below </td></tr>
<tr><th>White luminance</th><td colspan="2">80.0 cd/m<sup>2</sup></td></tr>
<tr><th>Black luminance</th><td colspan="2">0.80 cd/m<sup>2</sup></td></tr>
<tr><th>Image state</th><td colspan="2">display-referred</td></tr>
<tr>
<th>Percentages</th>
<td colspan="2">Allowed for R, G and B</td>
</tr>
<tr>
<th>Percent reference range&nbsp;</th>
<td>for R,G,B: 0% = 0.0, 100% = 1.0</td>
</tr>
</table>

<pre class="lang-javascript">
cl = c;
</pre>
<pre class="lang-javascript">
cl = c;
</pre>

c is the red, green or blue component.
cl is the corresponding linear-light component, which is identical.
c is the red, green or blue component.
cl is the corresponding linear-light component, which is identical.

To avoid banding artifacts, a
<a href="#predefined-precision-table">higher precision is required</a>
for ''display-p3-linear'' than for ''display-p3''.
To avoid banding artifacts, a
<a href="#predefined-precision-table">higher precision is required</a>
for ''display-p3-linear'' than for ''display-p3''.

<div class="example" id="display-p3-linear-swatches">
For example, these are the same color
<pre class="lang-css">
<span class="swatch" style="--color: rgb(64.55% 2.065% 26.03%)"></span> color(display-p3 0.591 0.123 0.264)
<span class="swatch" style="--color: rgb(64.55% 2.065% 26.03%)"></span> color(display-p3-linear 0.3081 0.014 0.0567)
</pre>
</div>
<div class="example" id="display-p3-linear-swatches">
For example, these are the same color
<pre class="lang-css">
<span class="swatch" style="--color: rgb(64.55% 2.065% 26.03%)"></span> color(display-p3 0.591 0.123 0.264)
<span class="swatch" style="--color: rgb(64.55% 2.065% 26.03%)"></span> color(display-p3-linear 0.3081 0.014 0.0567)
</pre>
</div>

</dl>
<wpt>
display-p3-linear-001.html
display-p3-linear-002.html
display-p3-linear-003.html
display-p3-linear-004.html
display-p3-linear-005.html
display-p3-linear-006.html
display-p3-linear-001.html
display-p3-linear-002.html
display-p3-linear-003.html
display-p3-linear-004.html
display-p3-linear-005.html
display-p3-linear-006.html
</wpt>

<h3 id="predefined-a98-rgb">
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2 changes: 1 addition & 1 deletion css-color-5/Overview.bs
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Expand Up @@ -1838,7 +1838,7 @@ The result of this function is in the color space of the origin color.
<dfn>&lt;colorspace-params></dfn> = [<<custom-params>> | <<predefined-rgb-params>> | <<xyz-params>>]
<dfn>&lt;custom-params></dfn> = <<dashed-ident>> [ <<number>> | <<percentage>> | none ]+
<dfn>&lt;predefined-rgb-params></dfn> = <<predefined-rgb>> [ <<number>> | <<percentage>> | none ]{3}
<dfn>&lt;predefined-rgb></dfn> = srgb | srgb-linear | display-p3 | a98-rgb | prophoto-rgb | rec2020
<dfn>&lt;predefined-rgb></dfn> = srgb | srgb-linear | display-p3 | display-p3-linear | a98-rgb | prophoto-rgb | rec2020
<dfn>&lt;xyz-params></dfn> = <<xyz-space>> [ <<number>> | <<percentage>> | none ]{3}
</pre>

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