diff --git a/frontend/index.html b/frontend/index.html
index e1ed4d8..65c2ac3 100644
--- a/frontend/index.html
+++ b/frontend/index.html
@@ -2913,7 +2913,7 @@ function renderTree(node, container) {
 	header.appendChild(label);
 	if (node.hex) {
 		const hex = document.createElement('span');
-		hex.className = 'text-sm font-mono text-gray-500 dark:text-slate-400 ml-2';
+		hex.className = 'text-sm font-mono text-indigo-600 dark:text-indigo-400 ml-2';
 		hex.textContent = node.hex;
 		header.appendChild(hex);
 	}