diff --git a/dist/index.css b/dist/index.css
index 35bfc4e9..954a0a24 100644
--- a/dist/index.css
+++ b/dist/index.css
@@ -151,6 +151,11 @@ main {
   [color]:not([color=standard]).subtle-background {
     --luma: var(--subtle-luma-dark);
   }
+  @media (display-mode: standalone) {
+    [color]:not([color=standard]).subtle-background {
+      --luma: 0%;
+    }
+  }
 }
 [color=coral] {
   --hue: 20;
diff --git a/src/colors.css b/src/colors.css
index b24e9a83..4587d5fe 100644
--- a/src/colors.css
+++ b/src/colors.css
@@ -96,6 +96,12 @@
   [color]:not([color="standard"]).subtle-background {
     --luma: var(--subtle-luma-dark);
   }
+
+  @media (display-mode: standalone) {
+    [color]:not([color="standard"]).subtle-background {
+      --luma: 0%;
+    }
+  }
 }
 
 /* definitions */