diff --git a/tinycolor.js b/tinycolor.js
index 9580299..e369b4b 100644
--- a/tinycolor.js
+++ b/tinycolor.js
@@ -167,7 +167,6 @@ tinycolor.prototype = {
         var formatSet = !!format;
         format = format || this._format;
 
-        var formattedString = false;
         var hasAlpha = this._a < 1 && this._a >= 0;
         var needsAlphaFormat = !formatSet && hasAlpha && (format === "hex" || format === "hex6" || format === "hex3" || format === "hex4" || format === "hex8" || format === "name");
 
@@ -179,35 +178,26 @@ tinycolor.prototype = {
             }
             return this.toRgbString();
         }
-        if (format === "rgb") {
-            formattedString = this.toRgbString();
+        switch(format){
+            case 'rgb':
+                return this.toRgbString();
+            case "prgb":
+                return this.toPercentageRgbString();
+            case "hex3":
+                return this.toHexString(true);
+            case "hex4":
+                return this.toHex8String(true);
+            case "hex8":
+                return this.toHex8String();
+            case "name":
+                return this.toName() || this.toHexString();
+            case "hsl":
+                return this.toHslString();
+            case "hsv":
+                return this.toHsvString();
+            // case "hex": case "hex6": case unknown:
+            default: return this.toHexString();
         }
-        if (format === "prgb") {
-            formattedString = this.toPercentageRgbString();
-        }
-        if (format === "hex" || format === "hex6") {
-            formattedString = this.toHexString();
-        }
-        if (format === "hex3") {
-            formattedString = this.toHexString(true);
-        }
-        if (format === "hex4") {
-            formattedString = this.toHex8String(true);
-        }
-        if (format === "hex8") {
-            formattedString = this.toHex8String();
-        }
-        if (format === "name") {
-            formattedString = this.toName();
-        }
-        if (format === "hsl") {
-            formattedString = this.toHslString();
-        }
-        if (format === "hsv") {
-            formattedString = this.toHsvString();
-        }
-
-        return formattedString || this.toHexString();
     },
     clone: function() {
         return tinycolor(this.toString());
@@ -1004,9 +994,14 @@ function bound01(n, max) {
     return (n % max) / parseFloat(max);
 }
 
+// Force a numeric value within the inclusive lower and upper bounds
+var clamp = function(lower, upper, numeric){
+	return mathMin(upper, mathMax(lower, numeric));
+};
+
 // Force a number between 0 and 1
 function clamp01(val) {
-    return mathMin(1, mathMax(0, val));
+    return clamp(0, 1, val);
 }
 
 // Parse a base-16 hex value into a base-10 integer