diff --git a/lib/parsers.js b/lib/parsers.js
index 6869951..915d9e7 100644
--- a/lib/parsers.js
+++ b/lib/parsers.js
@@ -267,7 +267,7 @@ exports.parseString = function parseString(val) {
 
 exports.parseColor = function parseColor(val) {
   var type = exports.valueType(val);
-  if (type === exports.TYPES.NULL_OR_EMPTY_STR) {
+  if (typeof val === 'undefined' || type === exports.TYPES.NULL_OR_EMPTY_STR) {
     return val;
   }
   if (/^[a-z]+$/i.test(val) && type === exports.TYPES.COLOR) {
diff --git a/test/parsers.js b/test/parsers.js
index 3a3da50..f1597ef 100644
--- a/test/parsers.js
+++ b/test/parsers.js
@@ -259,6 +259,13 @@ describe('parseColor', () => {
     assert.strictEqual(output, 'transparent');
   });
 
+  it('does not fail with undefined input', () => {
+    let input = undefined;
+    let output = parsers.parseColor(input);
+
+    assert.strictEqual(output, undefined);
+  });
+
   it.todo('Add more tests');
 });
 describe('parseAngle', () => {