diff --git a/web/pgadmin/static/scss/resources/dark/_theme.variables.scss b/web/pgadmin/static/scss/resources/dark/_theme.variables.scss
index 2fa907b8..2c853455 100644
--- a/web/pgadmin/static/scss/resources/dark/_theme.variables.scss
+++ b/web/pgadmin/static/scss/resources/dark/_theme.variables.scss
@@ -65,6 +65,8 @@ $alert-warning-color: $color-bg;
 $alert-header-fg: $color-fg;
 
 $table-bg: $color-gray-lighter;
+// SET sql text selection background color.
+$sql-editor-selection-bg: #536270;
 
 $color-editor-fg: #7dc9f1;
 $color-editor-keyword: #db7c74;