diff --git a/lib/src/default_tags/basic_tags.dart b/lib/src/default_tags/basic_tags.dart
index 8124911..fe8b9fc 100644
--- a/lib/src/default_tags/basic_tags.dart
+++ b/lib/src/default_tags/basic_tags.dart
@@ -64,13 +64,19 @@ class ColorTag extends StyleTag {
   @override
   TextStyle transformStyle(
       TextStyle oldStyle, Map<String, String>? attributes) {
+    RegExp hexColorRegExp = RegExp(r'^#?[0-9a-f]{6}$',caseSensitive : false);
+    
     if (attributes?.entries.isEmpty ?? true) {
       return oldStyle;
     }
 
-    String? hexColor = attributes?.entries.first.key;
-    if (hexColor == null) return oldStyle;
-    return oldStyle.copyWith(color: HexColor.fromHex(hexColor));
+    String? hexColor = attributes?.entries.first.key ?? "";
+    
+    if(hexColorRegExp.hasMatch(hexColor)){
+      return oldStyle.copyWith(color: HexColor.fromHex(hexColor));
+    }
+
+    return oldStyle;
   }
 }