[css-color-5] Add WCAG 2.1 AAA values, fix w3c#6311

svgeesus · svgeesus · commit 45b0b891e81f · 2021-05-26T19:42:50.000+03:00
diff --git a/css-color-5/Overview.bs b/css-color-5/Overview.bs
@@ -565,11 +565,13 @@ Selecting the most contrasting color: the ''color-contrast()'' function {#colorc
 	with the keyword <css>to</css>.
 
 	<pre class='prod'>
-		<dfn>color-contrast()</dfn> = color-contrast( <<color>> vs <<color>>#{2,}  [ to [<<number>> | AA | AA-large]]? )
+		<dfn>color-contrast()</dfn> = color-contrast( <<color>> vs <<color>>#{2,}  [ to [<<number>> | AA | AA-large | AAA | AAA-large]]? )
 	</pre>
 
 	The keyword <dfn value for="color-contrast()">AA</dfn> is equivalent to ''4.5'',
-	and the keyword <dfn value for="color-contrast()">AA-large</dfn> is equivalent to ''3''.
+	 <dfn value for="color-contrast()">AA-large</dfn> is equivalent to ''3'',
+	 <dfn value for="color-contrast()">AAA</dfn> is equivalent to ''7'', and
+	 <dfn value for="color-contrast()">AAA-large</dfn> is equivalent to ''4.5'' .
 
 	<div class="example">
 		<pre class="lang-css">color-contrast(wheat vs tan, sienna, var(--myAccent), #d2691e)</pre>
