diff --git a/index.js b/index.js
index 5deca40..38ba0c5 100644
--- a/index.js
+++ b/index.js
@@ -1,7 +1,8 @@
 class Highlighter {
-  constructor(root) {
+  constructor(root,highlightColor) {
     this._root = root;
     this._resolve = null;
+    this._highlightColor=highlightColor;
   }
 
   _initializeOverlay() {
@@ -24,7 +25,7 @@ class Highlighter {
     const style = node.style;
     style.textDecoration = 'none';
     style.color = 'var(--lumin-color, currentColor)';
-    style.background = 'var(--lumin-background-color, yellow)';
+    style.background = `var(--lumin-background-color, ${this._highlightColor})`;
     return node;
   }
 
@@ -182,4 +183,4 @@ class Highlighter {
 
 export default function lumin(node) {
   return new Highlighter(node);
-}
\ No newline at end of file
+}