diff --git a/core/core-frontend/src/style/index.less b/core/core-frontend/src/style/index.less
index 28490baf30..289242d391 100644
--- a/core/core-frontend/src/style/index.less
+++ b/core/core-frontend/src/style/index.less
@@ -621,7 +621,7 @@ strong {
 
 ::-webkit-scrollbar-thumb {
   border-radius: 4px;
-  background: #8b8b8b;
+  background: #1f23294d;
 }
 
 ::-webkit-scrollbar {
@@ -630,7 +630,7 @@ strong {
 }
 
 .ed-scrollbar__thumb {
-  background: #8b8b8b !important;
+  background: #1f23294d !important;
   opacity: 1 !important;
 }