diff --git a/app/assets/stylesheets/pages/diff.scss b/app/assets/stylesheets/pages/diff.scss
index 96ba7c40634..73623f33609 100644
--- a/app/assets/stylesheets/pages/diff.scss
+++ b/app/assets/stylesheets/pages/diff.scss
@@ -154,6 +154,7 @@
           content: '-';
           position: absolute;
           left: 0.5em;
+          color: #af979a;
         }
       }
 
@@ -162,6 +163,7 @@
           content: '+';
           position: absolute;
           left: 0.5em;
+          color: #9bb0a1;
         }
       }
     }
diff --git a/changelogs/unreleased/26186-diff-view-plus-and-minus-signs-as-part-of-line-number.yml b/changelogs/unreleased/26186-diff-view-plus-and-minus-signs-as-part-of-line-number.yml
new file mode 100644
index 00000000000..565672917b2
--- /dev/null
+++ b/changelogs/unreleased/26186-diff-view-plus-and-minus-signs-as-part-of-line-number.yml
@@ -0,0 +1,4 @@
+---
+title: Color + and - signs in diffs to increase code legibility
+merge_request:
+author: