diff --git a/lib/less/functions/color.js b/lib/less/functions/color.js
index 33f28bc59..a9b5198e8 100644
--- a/lib/less/functions/color.js
+++ b/lib/less/functions/color.js
@@ -20,6 +20,22 @@ function hsla(origColor, hsl) {
         return color;
     }
 }
+function toHSL(color) {
+    if (color.toHSL) {
+        return color.toHSL();
+    } else {
+        throw new Error('Argument cannot be evaluated to a color');
+    }
+}
+
+function toHSV(color) {
+    if (color.toHSV) {
+        return color.toHSV();
+    } else {
+        throw new Error('Argument cannot be evaluated to a color');
+    }
+}
+
 function number(n) {
     if (n instanceof Dimension) {
         return parseFloat(n.unit.is('%') ? n.value / 100 : n.value);
@@ -146,22 +162,22 @@ colorFunctions = {
     },
 
     hue: function (color) {
-        return new Dimension(color.toHSL().h);
+        return new Dimension(toHSL(color).h);
     },
     saturation: function (color) {
-        return new Dimension(color.toHSL().s * 100, '%');
+        return new Dimension(toHSL(color).s * 100, '%');
     },
     lightness: function (color) {
-        return new Dimension(color.toHSL().l * 100, '%');
+        return new Dimension(toHSL(color).l * 100, '%');
     },
     hsvhue: function(color) {
-        return new Dimension(color.toHSV().h);
+        return new Dimension(toHSV(color).h);
     },
     hsvsaturation: function (color) {
-        return new Dimension(color.toHSV().s * 100, '%');
+        return new Dimension(toHSV(color).s * 100, '%');
     },
     hsvvalue: function (color) {
-        return new Dimension(color.toHSV().v * 100, '%');
+        return new Dimension(toHSV(color).v * 100, '%');
     },
     red: function (color) {
         return new Dimension(color.rgb[0]);
@@ -173,7 +189,7 @@ colorFunctions = {
         return new Dimension(color.rgb[2]);
     },
     alpha: function (color) {
-        return new Dimension(color.toHSL().a);
+        return new Dimension(toHSL(color).a);
     },
     luma: function (color) {
         return new Dimension(color.luma() * color.alpha * 100, '%');
@@ -192,7 +208,7 @@ colorFunctions = {
         if (!color.rgb) {
             return null;
         }
-        var hsl = color.toHSL();
+        var hsl = toHSL(color);
 
         if (typeof method !== 'undefined' && method.value === 'relative') {
             hsl.s +=  hsl.s * amount.value / 100;
@@ -204,7 +220,7 @@ colorFunctions = {
         return hsla(color, hsl);
     },
     desaturate: function (color, amount, method) {
-        var hsl = color.toHSL();
+        var hsl = toHSL(color);
 
         if (typeof method !== 'undefined' && method.value === 'relative') {
             hsl.s -=  hsl.s * amount.value / 100;
@@ -216,7 +232,7 @@ colorFunctions = {
         return hsla(color, hsl);
     },
     lighten: function (color, amount, method) {
-        var hsl = color.toHSL();
+        var hsl = toHSL(color);
 
         if (typeof method !== 'undefined' && method.value === 'relative') {
             hsl.l +=  hsl.l * amount.value / 100;
@@ -228,7 +244,7 @@ colorFunctions = {
         return hsla(color, hsl);
     },
     darken: function (color, amount, method) {
-        var hsl = color.toHSL();
+        var hsl = toHSL(color);
 
         if (typeof method !== 'undefined' && method.value === 'relative') {
             hsl.l -=  hsl.l * amount.value / 100;
@@ -240,7 +256,7 @@ colorFunctions = {
         return hsla(color, hsl);
     },
     fadein: function (color, amount, method) {
-        var hsl = color.toHSL();
+        var hsl = toHSL(color);
 
         if (typeof method !== 'undefined' && method.value === 'relative') {
             hsl.a +=  hsl.a * amount.value / 100;
@@ -252,7 +268,7 @@ colorFunctions = {
         return hsla(color, hsl);
     },
     fadeout: function (color, amount, method) {
-        var hsl = color.toHSL();
+        var hsl = toHSL(color);
 
         if (typeof method !== 'undefined' && method.value === 'relative') {
             hsl.a -=  hsl.a * amount.value / 100;
@@ -264,14 +280,14 @@ colorFunctions = {
         return hsla(color, hsl);
     },
     fade: function (color, amount) {
-        var hsl = color.toHSL();
+        var hsl = toHSL(color);
 
         hsl.a = amount.value / 100;
         hsl.a = clamp(hsl.a);
         return hsla(color, hsl);
     },
     spin: function (color, amount) {
-        var hsl = color.toHSL();
+        var hsl = toHSL(color);
         var hue = (hsl.h + amount.value) % 360;
 
         hsl.h = hue < 0 ? 360 + hue : hue;
@@ -283,16 +299,12 @@ colorFunctions = {
     // http://sass-lang.com
     //
     mix: function (color1, color2, weight) {
-        if (!color1.toHSL || !color2.toHSL) {
-            console.log(color2.type);
-            console.dir(color2);
-        }
         if (!weight) {
             weight = new Dimension(50);
         }
         var p = weight.value / 100.0;
         var w = p * 2 - 1;
-        var a = color1.toHSL().a - color2.toHSL().a;
+        var a = toHSL(color1).a - toHSL(color2).a;
 
         var w1 = (((w * a == -1) ? w : (w + a) / (1 + w * a)) + 1) / 2.0;
         var w2 = 1 - w1;
diff --git a/lib/less/functions/list.js b/lib/less/functions/list.js
index 864b798f4..8c2523398 100644
--- a/lib/less/functions/list.js
+++ b/lib/less/functions/list.js
@@ -5,6 +5,7 @@ var Comment = require('../tree/comment'),
     Ruleset = require('../tree/ruleset'),
     Selector = require('../tree/selector'),
     Element = require('../tree/element'),
+    Quote = require('../tree/quoted'),
     functionRegistry = require('./function-registry');
 
 var getItemsFromNode = function(node) {
@@ -59,7 +60,7 @@ functionRegistry.addMultiple({
     each: function(list, rs) {
         var rules = [], newRules, iterator;
 
-        if (list.value) {
+        if (list.value && !(list instanceof Quote)) {
             if (Array.isArray(list.value)) {
                 iterator = list.value;
             } else {
diff --git a/lib/less/functions/string.js b/lib/less/functions/string.js
index 119309842..a04311cc2 100644
--- a/lib/less/functions/string.js
+++ b/lib/less/functions/string.js
@@ -1,11 +1,12 @@
 var Quoted = require('../tree/quoted'),
     Anonymous = require('../tree/anonymous'),
+    Quote = require('../tree/quoted'),
     JavaScript = require('../tree/javascript'),
     functionRegistry = require('./function-registry');
 
 functionRegistry.addMultiple({
     e: function (str) {
-        return new Anonymous(str instanceof JavaScript ? str.evaluated : str.value);
+        return new Quote('"', str instanceof JavaScript ? str.evaluated : str.value, true);
     },
     escape: function (str) {
         return new Anonymous(
diff --git a/lib/less/parser/parser.js b/lib/less/parser/parser.js
index 847d0cc92..1faa1116a 100644
--- a/lib/less/parser/parser.js
+++ b/lib/less/parser/parser.js
@@ -635,10 +635,15 @@ var Parser = function Parser(context, imports, fileInfo) {
                 //
                 color: function () {
                     var rgb;
+                    parserInput.save();
 
-                    if (parserInput.currentChar() === '#' && (rgb = parserInput.$re(/^#([A-Fa-f0-9]{8}|[A-Fa-f0-9]{6}|[A-Fa-f0-9]{3,4})/))) {
-                        return new(tree.Color)(rgb[1], undefined, rgb[0]);
+                    if (parserInput.currentChar() === '#' && (rgb = parserInput.$re(/^#([A-Fa-f0-9]{8}|[A-Fa-f0-9]{6}|[A-Fa-f0-9]{3,4})([\w.#\[])?/))) {
+                        if (!rgb[2]) {
+                            parserInput.forget();
+                            return new(tree.Color)(rgb[1], undefined, rgb[0]);
+                        } 
                     }
+                    parserInput.restore();
                 },
 
                 colorKeyword: function () {
diff --git a/lib/less/tree/quoted.js b/lib/less/tree/quoted.js
index c19d74146..080552ac7 100644
--- a/lib/less/tree/quoted.js
+++ b/lib/less/tree/quoted.js
@@ -38,7 +38,7 @@ Quoted.prototype.eval = function (context) {
     function iterativeReplace(value, regexp, replacementFnc) {
         var evaluatedValue = value;
         do {
-            value = evaluatedValue;
+            value = evaluatedValue.toString();
             evaluatedValue = value.replace(regexp, replacementFnc);
         } while (value !== evaluatedValue);
         return evaluatedValue;
diff --git a/test/css/functions-each.css b/test/css/functions-each.css
index d8743275f..89b90f30b 100644
--- a/test/css/functions-each.css
+++ b/test/css/functions-each.css
@@ -80,3 +80,13 @@
 .bar {
   content: blue;
 }
+span {
+  content: 'foo';
+  content: 'bar';
+}
+div {
+  content: 'foo';
+}
+.a .w-1 {
+  width: 90 100 110;
+}
diff --git a/test/css/namespacing/namespacing-1.css b/test/css/namespacing/namespacing-1.css
index 7a4253bde..f2097696f 100644
--- a/test/css/namespacing/namespacing-1.css
+++ b/test/css/namespacing/namespacing-1.css
@@ -14,3 +14,7 @@
 #ns1 {
   foo: uno;
 }
+.button {
+  color: grey;
+  border-color: #AAA #CCC;
+}
diff --git a/test/less/colors.less b/test/less/colors.less
index 90063c84f..dd4d1bf92 100644
--- a/test/less/colors.less
+++ b/test/less/colors.less
@@ -113,4 +113,4 @@
   test-12: hsla(#5F59, 0.5);
   --semi-transparent-dark-background: #001e00ee;
   --semi-transparent-dark-background-2: rgba(0, 30, 0, 238); // invalid opacity will be capped
-}
\ No newline at end of file
+}
diff --git a/test/less/errors/color-func-invalid-color-2.less b/test/less/errors/color-func-invalid-color-2.less
new file mode 100644
index 000000000..5152ae62d
--- /dev/null
+++ b/test/less/errors/color-func-invalid-color-2.less
@@ -0,0 +1,2 @@
+// https://github.com/less/less.js/issues/3338
+@base-color: darken(var(--baseColor, red), 50%);
\ No newline at end of file
diff --git a/test/less/errors/color-func-invalid-color-2.txt b/test/less/errors/color-func-invalid-color-2.txt
new file mode 100644
index 000000000..39dd5887c
--- /dev/null
+++ b/test/less/errors/color-func-invalid-color-2.txt
@@ -0,0 +1,3 @@
+RuntimeError: error evaluating function `darken`: Argument cannot be evaluated to a color in {path}color-func-invalid-color-2.less on line 2, column 14:
+1 // https://github.com/less/less.js/issues/3338
+2 @base-color: darken(var(--baseColor, red), 50%);
diff --git a/test/less/functions-each.less b/test/less/functions-each.less
index c480252c8..6d800c4f1 100644
--- a/test/less/functions-each.less
+++ b/test/less/functions-each.less
@@ -129,3 +129,35 @@ each(@one[@two], {
     content: @value;
   }
 });
+
+// https://github.com/less/less.js/issues/3354
+.log(@msgs) {
+  each(@msgs; {
+    content: @value;
+  });
+}
+
+@messages: 'foo', 'bar';
+
+span {
+  .log(@messages);
+}
+
+div {
+  .log('foo');
+}
+
+// https://github.com/less/less.js/issues/3345
+.mixin-create-width-style() {
+  @list: e("90 100 110");
+
+  each(@list, {
+      .w-@{key} {
+          width: @value;
+      }
+  })
+}
+
+.a {
+  .mixin-create-width-style();
+}
\ No newline at end of file
diff --git a/test/less/namespacing/namespacing-1.less b/test/less/namespacing/namespacing-1.less
index 1618e4a6b..b5890e532 100644
--- a/test/less/namespacing/namespacing-1.less
+++ b/test/less/namespacing/namespacing-1.less
@@ -39,4 +39,14 @@
   .vars() {
     sub: tres;
   }
+}
+
+// https://github.com/less/less.js/issues/3346
+#DEF() {
+  .colors() { primary: grey; }
+}
+
+.button {
+  color: #DEF.colors[primary];
+  border-color: #AAA #CCC;
 }
\ No newline at end of file