Added: red() green() and blue() functions, with tests.

lib/less/functions.js

@@ -41,6 +41,15 @@ tree.functions = {
     lightness: function (color) {
         return new(tree.Dimension)(Math.round(color.toHSL().l * 100), '%');
     },
+    red: function (color) {
+        return new(tree.Dimension)(color.rgb[0]);
+    },
+    green: function (color) {
+        return new(tree.Dimension)(color.rgb[1]);
+    },
+    blue: function (color) {
+        return new(tree.Dimension)(color.rgb[2]);
+    },
     alpha: function (color) {
         return new(tree.Dimension)(color.toHSL().a);
     },

test/css/functions.css

@@ -44,6 +44,9 @@
   hue: 98;
   saturation: 12%;
   lightness: 95%;
+  red: 255;
+  green: 255;
+  blue: 255;
   rounded: 11;
   roundedpx: 3px;
   percentage: 20%;

test/less/functions.less

@@ -48,6 +48,9 @@
   hue: hue(hsl(98, 12%, 95%));
   saturation: saturation(hsl(98, 12%, 95%));
   lightness: lightness(hsl(98, 12%, 95%));
+  red: red(#f00);
+  green: green(#0f0);
+  blue: blue(#00f);
   rounded: round(@r/3);
   roundedpx: round(10px / 3);
   percentage: percentage(10px / 50);