diff --git a/app/assets/stylesheets/common/base/lightbox.scss b/app/assets/stylesheets/common/base/lightbox.scss
index d941d33c6da..7b6f850858a 100644
--- a/app/assets/stylesheets/common/base/lightbox.scss
+++ b/app/assets/stylesheets/common/base/lightbox.scss
@@ -38,7 +38,7 @@
   .informations {
     margin: 6px;
     padding-right: 20px;
-    color: $primary;
+    color: scale-color($primary, $lightness: 50%);
     font-size: 14px;
   }