diff --git a/uebung3/farbenlehre.html b/uebung3/farbenlehre.html
index 31efad7..9bb4319 100644
--- a/uebung3/farbenlehre.html
+++ b/uebung3/farbenlehre.html
@@ -51,7 +51,9 @@
                         cell1.innerHTML = toHex(r);
                         cell2.innerHTML = toHex(g);
                         cell3.innerHTML = toHex(b);
-                        cell4.innerHTML = "#" + toHex(r) + toHex(g) + toHex(b);
+                        let farbcode = "#" + toHex(r) + toHex(g) + toHex(b);
+                        cell4.innerHTML = farbcode;
+                        cell4.style.backgroundColor = farbcode;
                 }
         </script>