diff --git a/lib/src/colorized_text_avatar.dart b/lib/src/colorized_text_avatar.dart
index 461a908..4291bc8 100644
--- a/lib/src/colorized_text_avatar.dart
+++ b/lib/src/colorized_text_avatar.dart
@@ -34,19 +34,33 @@ class TextAvatar extends StatelessWidget {
   Widget build(BuildContext context) {
     shape = (shape == null) ? Shape.Rectangle : shape;
     size = (size == null || size! < 32.0) ? 48.0 : size;
-    backgroundColor = backgroundColor == null ? _colorBackgroundConfig() : backgroundColor;
+    backgroundColor =
+        backgroundColor == null ? _colorBackgroundConfig() : backgroundColor;
     textColor = _colorTextConfig();
     return _textDisplay();
   }
 
   Color _colorBackgroundConfig() {
-    if (RegExp(r'[A-Z]|').hasMatch(
-      _textConfiguration(),
-    )) {
-      backgroundColor =
-          colorData[_textConfiguration()[0].toLowerCase().toString()];
+    Color? color = colorData[_textConfiguration()[0].toLowerCase().toString()];
+    if (color == null) {
+      color = buildBackgroundColor();
     }
-    return backgroundColor!;
+
+    return color;
+  }
+
+  Color buildBackgroundColor() {
+    String newText = text == null ? '?' : _toString(value: text);
+    String hexCode = newText
+        .toString()
+        .codeUnits
+        .map((e) => e.toRadixString(16))
+        .join()
+        .toUpperCase();
+
+    String color = 'FF${hexCode.substring(0, 6)}';
+
+    return Color(int.parse(color, radix: 16));
   }
 
   Color _colorTextConfig() {
diff --git a/lib/src/constants/colors.dart b/lib/src/constants/colors.dart
index f420f57..3f9bf84 100644
--- a/lib/src/constants/colors.dart
+++ b/lib/src/constants/colors.dart
@@ -26,5 +26,14 @@ var colorData = {
   "w": Color.fromRGBO(194, 194, 194, 1),
   "x": Color.fromRGBO(124, 222, 235, 1),
   "y": Color.fromRGBO(188, 170, 164, 1),
-  "z": Color.fromRGBO(173, 214, 125, 1),
+  "1": Color.fromRGBO(229, 115, 115, 1),
+  "2": Color.fromRGBO(67, 160, 71, 1),
+  "3": Color.fromRGBO(255, 179, 0, 1),
+  "4": Color.fromRGBO(244, 81, 30, 1),
+  "5": Color.fromRGBO(228, 72, 215, 1),
+  "6": Color.fromRGBO(255, 110, 64, 1),
+  "7": Color.fromRGBO(0, 121, 107, 1),
+  "8": Color.fromRGBO(158, 158, 158, 1),
+  "9": Color.fromRGBO(106, 27, 154, 1),
+  "0": Color.fromRGBO(226, 82, 97, 1),
 };