diff --git a/lib/parser.js b/lib/parser.js
index 720f882..6bfab64 100644
--- a/lib/parser.js
+++ b/lib/parser.js
@@ -463,7 +463,7 @@ module.exports = class Parser {
 
         if (node.constructor.name === 'Word') {
           node.isHex = /^#(.+)/.test(value);
-          node.isColor = /^#([0-9a-f]{3}|[0-9a-f]{6}|[0-9a-f]{8})$/i.test(value);
+          node.isColor = /^#([0-9a-f]{3}|[0-9a-f]{4}|[0-9a-f]{6}|[0-9a-f]{8})$/i.test(value);
         }
         else {
           this.cache.push(this.current);
diff --git a/test/word.js b/test/word.js
index b94839e..8e15f0f 100644
--- a/test/word.js
+++ b/test/word.js
@@ -70,9 +70,10 @@ describe('Parser → Word', () => {
     },
     {
       it: 'should parse hex colors',
-      test: '#123 #abcdef #a2b3c4d5',
+      test: '#123 #f09f #abcdef #a2b3c4d5',
       expected: [
         { type: 'word', value: '#123', isHex: true, isColor: true },
+        { type: 'word', value: '#f09f', isHex: true, isColor: true },
         { type: 'word', value: '#abcdef', isHex: true, isColor: true },
         { type: 'word', value: '#a2b3c4d5', isHex: true, isColor: true  }
       ]