diff --git a/lib/parsers.js b/lib/parsers.js
index 887bd51..76b6e31 100644
--- a/lib/parsers.js
+++ b/lib/parsers.js
@@ -28,9 +28,10 @@ var lengthRegEx = /^(0|[-+]?[0-9]*\.?[0-9]+(in|cm|em|mm|pt|pc|px|ex|rem|vh|vw|ch
 var percentRegEx = /^[-+]?[0-9]*\.?[0-9]+%$/;
 var urlRegEx = /^url\(\s*([^)]*)\s*\)$/;
 var stringRegEx = /^("[^"]*"|'[^']*')$/;
-var colorRegEx1 = /^#([0-9a-fA-F]{3,4}){1,2}$/;
-var colorRegEx2 = /^rgb\(([^)]*)\)$/;
-var colorRegEx3 = /^rgba\(([^)]*)\)$/;
+var colorRegEx1 = /^#((?:[0-9A-F]{3,4}){1,2})$/i;
+var colorRegEx2 =
+  /^rgba?\(\s*((?:(?:none|[-+]?\d*\.?\d+%?)[\s,]+){2,3}[\s,/]*(?:none|[-+]?\d*\.?\d+%?))\s*\)$/;
+var rgbdelimiters = /[\s,/]+/;
 var calcRegEx = /^calc\(([^)]*)\)$/;
 var colorRegEx4 =
   /^hsla?\(\s*(-?\d+|-?\d*.\d+)\s*,\s*(-?\d+|-?\d*.\d+)%\s*,\s*(-?\d+|-?\d*.\d+)%\s*(,\s*(-?\d+|-?\d*.\d+)\s*)?\)/;
@@ -76,37 +77,8 @@ exports.valueType = function valueType(val) {
   if (colorRegEx1.test(val)) {
     return exports.TYPES.COLOR;
   }
-
-  var res = colorRegEx2.exec(val);
-  var parts;
-  if (res !== null) {
-    parts = res[1].split(/\s*,\s*/);
-    if (parts.length !== 3) {
-      return undefined;
-    }
-    if (
-      parts.every(percentRegEx.test.bind(percentRegEx)) ||
-      parts.every(integerRegEx.test.bind(integerRegEx))
-    ) {
-      return exports.TYPES.COLOR;
-    }
-    return undefined;
-  }
-  res = colorRegEx3.exec(val);
-  if (res !== null) {
-    parts = res[1].split(/\s*,\s*/);
-    if (parts.length !== 4) {
-      return undefined;
-    }
-    if (
-      parts.slice(0, 3).every(percentRegEx.test.bind(percentRegEx)) ||
-      parts.slice(0, 3).every(integerRegEx.test.bind(integerRegEx))
-    ) {
-      if (numberRegEx.test(parts[3])) {
-        return exports.TYPES.COLOR;
-      }
-    }
-    return undefined;
+  if (colorRegEx2.exec(val) !== null) {
+    return exports.TYPES.COLOR;
   }
 
   if (colorRegEx4.test(val)) {
@@ -302,80 +274,53 @@ exports.parseColor = function parseColor(val) {
   var res = colorRegEx1.exec(val);
   // is it #aaa, #ababab, #aaaa, #abababaa
   if (res) {
-    var defaultHex = val.substr(1);
-    var hex = val.substr(1);
-    if (hex.length === 3 || hex.length === 4) {
-      hex = hex[0] + hex[0] + hex[1] + hex[1] + hex[2] + hex[2];
-
-      if (defaultHex.length === 4) {
-        hex = hex + defaultHex[3] + defaultHex[3];
-      }
+    var hex = res[1];
+    if ([3, 4].includes(hex.length)) {
+      hex = [...hex].map((el) => el + el).join('');
     }
-    red = parseInt(hex.substr(0, 2), 16);
-    green = parseInt(hex.substr(2, 2), 16);
-    blue = parseInt(hex.substr(4, 2), 16);
+    var output = [red, green, blue];
+    output = output.map((_, i) => parseInt(hex.substr(i * 2, 2), 16));
     if (hex.length === 8) {
-      var hexAlpha = hex.substr(6, 2);
-      var hexAlphaToRgbaAlpha = Number((parseInt(hexAlpha, 16) / 255).toFixed(3));
-
-      return 'rgba(' + red + ', ' + green + ', ' + blue + ', ' + hexAlphaToRgbaAlpha + ')';
+      alpha = Number((parseInt(hex.substr(6, 2), 16) / 255).toFixed(3));
+      //if (alpha !== 1) {
+      output.push(alpha);
+      //}
     }
-    return 'rgb(' + red + ', ' + green + ', ' + blue + ')';
+    return (output.length == 4 ? 'rgba(' : 'rgb(') + output.join(', ') + ')';
   }
 
   res = colorRegEx2.exec(val);
   if (res) {
-    parts = res[1].split(/\s*,\s*/);
-    if (parts.length !== 3) {
-      return undefined;
-    }
-    if (parts.every(percentRegEx.test.bind(percentRegEx))) {
-      red = Math.floor((parseFloat(parts[0].slice(0, -1)) * 255) / 100);
-      green = Math.floor((parseFloat(parts[1].slice(0, -1)) * 255) / 100);
-      blue = Math.floor((parseFloat(parts[2].slice(0, -1)) * 255) / 100);
-    } else if (parts.every(integerRegEx.test.bind(integerRegEx))) {
-      red = parseInt(parts[0], 10);
-      green = parseInt(parts[1], 10);
-      blue = parseInt(parts[2], 10);
-    } else {
-      return undefined;
-    }
-    red = Math.min(255, Math.max(0, red));
-    green = Math.min(255, Math.max(0, green));
-    blue = Math.min(255, Math.max(0, blue));
-    return 'rgb(' + red + ', ' + green + ', ' + blue + ')';
-  }
-
-  res = colorRegEx3.exec(val);
-  if (res) {
-    parts = res[1].split(/\s*,\s*/);
-    if (parts.length !== 4) {
-      return undefined;
-    }
-    if (parts.slice(0, 3).every(percentRegEx.test.bind(percentRegEx))) {
-      red = Math.floor((parseFloat(parts[0].slice(0, -1)) * 255) / 100);
-      green = Math.floor((parseFloat(parts[1].slice(0, -1)) * 255) / 100);
-      blue = Math.floor((parseFloat(parts[2].slice(0, -1)) * 255) / 100);
-      alpha = parseFloat(parts[3]);
-    } else if (parts.slice(0, 3).every(integerRegEx.test.bind(integerRegEx))) {
-      red = parseInt(parts[0], 10);
-      green = parseInt(parts[1], 10);
-      blue = parseInt(parts[2], 10);
-      alpha = parseFloat(parts[3]);
-    } else {
-      return undefined;
-    }
-    if (isNaN(alpha)) {
-      alpha = 1;
-    }
-    red = Math.min(255, Math.max(0, red));
-    green = Math.min(255, Math.max(0, green));
-    blue = Math.min(255, Math.max(0, blue));
-    alpha = Math.min(1, Math.max(0, alpha));
-    if (alpha === 1) {
-      return 'rgb(' + red + ', ' + green + ', ' + blue + ')';
+    parts = res[1].split(rgbdelimiters);
+    [red, green, blue] = parts.slice(0, 3).map((code) =>
+      code.toLowerCase() == 'none'
+        ? 0
+        : Math.min(
+            255,
+            Math.max(
+              0,
+              percentRegEx.test(code)
+                ? Math.floor((parseFloat(code.slice(0, -1)) * 255) / 100) //Math.round
+                : integerRegEx.test(code)
+                  ? parseInt(code, 10)
+                  : undefined
+            )
+          )
+    );
+    var base = [red, green, blue];
+    if (parts.length == 4) {
+      alpha =
+        parts[3] == 'none'
+          ? 0
+          : percentRegEx.test(parts[3])
+            ? parseFloat(parts[3].slice(0, -1)) / 100
+            : parseFloat(parts[3]);
+      alpha = isNaN(alpha) ? 1 : Math.min(1, Math.max(0, alpha));
+      if (alpha >= 0 && alpha < 1) {
+        base.push(alpha);
+      }
     }
-    return 'rgba(' + red + ', ' + green + ', ' + blue + ', ' + alpha + ')';
+    return (base.length == 4 ? 'rgba(' : 'rgb(') + base.join(', ') + ')';
   }
 
   res = colorRegEx4.exec(val);