diff --git a/ghost/admin/app/styles/layouts/post-preview.css b/ghost/admin/app/styles/layouts/post-preview.css
index c73d1c6cc0..05135e5a22 100644
--- a/ghost/admin/app/styles/layouts/post-preview.css
+++ b/ghost/admin/app/styles/layouts/post-preview.css
@@ -61,6 +61,7 @@
     max-width: 20px;
     vertical-align: middle;
     fill: var(--midgrey);
+    color: var(--midgrey);
 }
 
 .gh-publish-preview-newtab {
diff --git a/ghost/admin/app/styles/patterns/buttons.css b/ghost/admin/app/styles/patterns/buttons.css
index 0eabe23a54..50bf16a809 100644
--- a/ghost/admin/app/styles/patterns/buttons.css
+++ b/ghost/admin/app/styles/patterns/buttons.css
@@ -450,6 +450,7 @@ Usage: CTA buttons grouped together horizontally.
 
 .gh-btn-group .gh-btn-group-selected svg {
     fill: var(--black);
+    color: var(--black);
 }
 
 .gh-btn-group.icons .gh-btn {