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Merge pull request w3c#5851 from weinig/weinig/lab-lch-syntax-errors
[css-color-4] Fix typos in examples of lab(), lch() and color(lab ...)
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css-color-4/Overview.bs

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@@ -2812,7 +2812,7 @@ Device-independent Colors: Lab and LCH</h2>
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For example, in HSL, the sRGB colors blue (#00F) and yellow (#FF0)
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have the same value of L (50%) even though visually, blue is much darker.
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This is much clearer in Lab:
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sRGB blue is lab(29.567% 68.298,-112.0294)
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sRGB blue is lab(29.567% 68.298 -112.0294)
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while
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sRGB yellow is lab(97.607% -15.753 93.388).
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In Lab and LCH, if two colors have the same measured L value,
@@ -2880,7 +2880,7 @@ Specifying Lab and LCH: the ''lab()'' and ''lch()'' functional notations</h3>
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<pre class="lang-css">
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<span class="swatch" style="--color: rgb(49.06% 13.87% 15.9%)"></span> lab(29.2345% 39.3825 20.0664);
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<span class="swatch" style="--color: rgb(77.61% 36.34% 2.45%)"></span> lab(52.2345% 40.1645 59.9971);
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<span class="swatch" style="--color: rgb(61.65% 57.51% 9.28%)"></span> lab(60.2345, -5.3654 58.956);
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<span class="swatch" style="--color: rgb(61.65% 57.51% 9.28%)"></span> lab(60.2345% -5.3654 58.956);
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<span class="swatch" style="--color: rgb(40.73% 65.12% 22.35%)"></span> lab(62.2345% -34.9638 47.7721);
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<span class="swatch" style="--color: rgb(38.29% 67.27% 93.85%)"></span> lab(67.5345% -8.6911 -41.6019);
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</pre>
@@ -3217,7 +3217,7 @@ Profiled, Device-dependent Colors</h2>
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This very intense lime color is in-gamut for rec.2020:
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<pre class="lang-css">color(rec2020 0.42053 0.979780 0.00579);</pre>
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in LCH, that color is
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<pre class="lang-css">lch(86.6146 160.0000, 136.0088);</pre>
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<pre class="lang-css">lch(86.6146% 160.0000 136.0088);</pre>
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in display-p3, that color is
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<pre class="lang-css">color(display-p3 -0.6112 1.0079 -0.2192);</pre>
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and is out of gamut for display-p3
@@ -3557,7 +3557,7 @@ Predefined colorspaces: ''srgb'', ''display-p3'', ''a98-rgb'', ''prophoto-rgb'',
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<pre class="lang-css">
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<span class="swatch" style="--color: #7654CD"></span> #7654CD;
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<span class="swatch" style="--color: #7654CD"></span> rgb(46.27% 32.94% 80.39%)
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<span class="swatch" style="--color: #7654CD"></span> color(lab 44.36 36.05 -58.99)
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<span class="swatch" style="--color: #7654CD"></span> color(lab 44.36% 36.05 -58.99)
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<span class="swatch" style="--color: #7654CD"></span> color(xyz 0.2005, 0.14089, 0.4472)
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</div>
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@@ -3795,7 +3795,7 @@ you will use.
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of cyan, magenta, yellow, and black.
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In this profile, this resolves to the color
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<span class="swatch" style="--color: rgb(93.124% 44.098% 57.491%)"></span>&nbsp;Lab(63.673303% 51.576902 5.811058)
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<span class="swatch" style="--color: rgb(93.124% 44.098% 57.491%)"></span>&nbsp;lab(63.673303% 51.576902 5.811058)
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which is
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<span class="swatch" style="--color: rgb(93.124% 44.098% 57.491%)"></span>&nbsp;rgb(93.124, 44.098% 57.491%).
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</div>
@@ -3886,7 +3886,7 @@ can proceed as normal.
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In this profile, this amount of CMYK
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(the same percentages as the previous example)
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resolves to the color
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<span class="swatch" style="--color: rgb(94.903% 45.248% 59.104%)"></span>&nbsp;Lab(64.965217% 52.119710 5.406966)
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<span class="swatch" style="--color: rgb(94.903% 45.248% 59.104%)"></span>&nbsp;lab(64.965217% 52.119710 5.406966)
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which is
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<span class="swatch" style="--color: rgb(94.903% 45.248% 59.104%)"></span>&nbsp;rgb(94.903% 45.248% 59.104%).
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</div>
@@ -3925,14 +3925,14 @@ to be outside the sRGB gamut.
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This example does not use illustrative swatches, because most of the colors are outside of sRGB.
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This CMYK color corresponds to Lab(56.596645% -58.995875 28.072154)
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or LCH(56.596645% 65.33421077211648, 154.5533771086801).
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This CMYK color corresponds to lab(56.596645% -58.995875 28.072154)
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or lch(56.596645% 65.33421077211648 154.5533771086801).
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In sRGB this would be rgb(-60.568% 62.558% 32.390%) which,
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as the large negative red component shows,
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is out of gamut.
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Reducing the chroma until the result is in gamut
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gives LCH(56.596645% 51 154.5533771086801)
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gives lch(56.596645% 51 154.5533771086801)
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which is rgb(8.154% 60.9704% 37.184%)
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and this is used as the fallback color.
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