diff --git a/extensions/css/syntaxes/css.plist b/extensions/css/syntaxes/css.plist
index e2567c4e200..036868b553f 100644
--- a/extensions/css/syntaxes/css.plist
+++ b/extensions/css/syntaxes/css.plist
@@ -254,7 +254,7 @@
 			<array>
 				<dict>
 					<key>comment</key>
-					<string>http://www.w3.org/TR/CSS21/syndata.html#value-def-color</string>
+					<string>Basic color keywords: http://www.w3.org/TR/css3-color/#html4</string>
 					<key>match</key>
 					<string>\b(aqua|black|blue|fuchsia|gray|green|lime|maroon|navy|olive|orange|purple|red|silver|teal|white|yellow)\b</string>
 					<key>name</key>
@@ -262,7 +262,7 @@
 				</dict>
 				<dict>
 					<key>comment</key>
-					<string>These colours are mostly recognised but will not validate. ref: http://www.w3schools.com/css/css_colornames.asp</string>
+					<string>Extended color keywords: http://www.w3.org/TR/css3-color/#svg-color</string>
 					<key>match</key>
 					<string>\b(aliceblue|antiquewhite|aquamarine|azure|beige|bisque|blanchedalmond|blueviolet|brown|burlywood|cadetblue|chartreuse|chocolate|coral|cornflowerblue|cornsilk|crimson|cyan|darkblue|darkcyan|darkgoldenrod|darkgray|darkgreen|darkgrey|darkkhaki|darkmagenta|darkolivegreen|darkorange|darkorchid|darkred|darksalmon|darkseagreen|darkslateblue|darkslategray|darkslategrey|darkturquoise|darkviolet|deeppink|deepskyblue|dimgray|dimgrey|dodgerblue|firebrick|floralwhite|forestgreen|gainsboro|ghostwhite|gold|goldenrod|greenyellow|grey|honeydew|hotpink|indianred|indigo|ivory|khaki|lavender|lavenderblush|lawngreen|lemonchiffon|lightblue|lightcoral|lightcyan|lightgoldenrodyellow|lightgray|lightgreen|lightgrey|lightpink|lightsalmon|lightseagreen|lightskyblue|lightslategray|lightslategrey|lightsteelblue|lightyellow|limegreen|linen|magenta|mediumaquamarine|mediumblue|mediumorchid|mediumpurple|mediumseagreen|mediumslateblue|mediumspringgreen|mediumturquoise|mediumvioletred|midnightblue|mintcream|mistyrose|moccasin|navajowhite|oldlace|olivedrab|orangered|orchid|palegoldenrod|palegreen|paleturquoise|palevioletred|papayawhip|peachpuff|peru|pink|plum|powderblue|rebeccapurple|rosybrown|royalblue|saddlebrown|salmon|sandybrown|seagreen|seashell|sienna|skyblue|slateblue|slategray|slategrey|snow|springgreen|steelblue|tan|thistle|tomato|turquoise|violet|wheat|whitesmoke|yellowgreen)\b</string>
 					<key>name</key>