diff --git a/theme/boost/scss/moodle/core.scss b/theme/boost/scss/moodle/core.scss
index d74ad2eac34..016c81cae02 100644
--- a/theme/boost/scss/moodle/core.scss
+++ b/theme/boost/scss/moodle/core.scss
@@ -2076,7 +2076,7 @@ a.disabled {
     text-decoration: none;
     cursor: default;
     font-style: italic;
-    color: #808080;
+    color: $text-muted;
 }
 
 body.lockscroll {
diff --git a/theme/boost/style/moodle.css b/theme/boost/style/moodle.css
index 461a664d6dc..5e3dd18de56 100644
--- a/theme/boost/style/moodle.css
+++ b/theme/boost/style/moodle.css
@@ -24945,7 +24945,7 @@ a.disabled {
   text-decoration: none;
   cursor: default;
   font-style: italic;
-  color: #808080;
+  color: #6a737b;
 }
 
 body.lockscroll {
diff --git a/theme/classic/style/moodle.css b/theme/classic/style/moodle.css
index 066cf610fa6..1e7d68e40ae 100644
--- a/theme/classic/style/moodle.css
+++ b/theme/classic/style/moodle.css
@@ -24945,7 +24945,7 @@ a.disabled {
   text-decoration: none;
   cursor: default;
   font-style: italic;
-  color: #808080;
+  color: #6a737b;
 }
 
 body.lockscroll {