diff --git a/packages/components/src/snackbar/style.scss b/packages/components/src/snackbar/style.scss
index d6613d013aba00..9ac246a36d75e1 100644
--- a/packages/components/src/snackbar/style.scss
+++ b/packages/components/src/snackbar/style.scss
@@ -1,16 +1,18 @@
 .components-snackbar {
 	font-family: $default-font;
-	font-size: $default-font-size;
+	font-size: $default-font-size * 1.6;
 	background: rgba($black, 0.85); // Emulates #1e1e1e closely.
 	backdrop-filter: blur($grid-unit-20) saturate(180%);
 	border-radius: $radius-medium;
 	box-shadow: $elevation-small;
 	color: $white;
-	padding: $grid-unit-15 ($grid-unit-05 * 5);
+	padding: $grid-unit-15 ($grid-unit-05 * 6);
 	width: 100%;
-	max-width: 600px;
+	max-width: 700px;
 	box-sizing: border-box;
 	cursor: pointer;
+	border-left: 3px solid #28a745;
+	padding-left: $grid-unit-30;
 
 	// Re-enable pointer events, which are disabled by the
 	// .components-snackbar-list styles.
@@ -45,6 +47,11 @@
 	}
 }
 
+.components-snackbar.is-success {
+	border-left: 2.5px solid #28a745;
+	padding-left: $grid-unit-30; // Optional: increase left padding so text doesn’t get too close
+}
+
 .components-snackbar__action.components-button,
 .components-snackbar__action.components-external-link {
 	margin-left: $grid-unit-40;
diff --git a/packages/editor/src/components/post-publish-panel/postpublish.js b/packages/editor/src/components/post-publish-panel/postpublish.js
index f3fd60417eb195..65b5ae078ebf51 100644
--- a/packages/editor/src/components/post-publish-panel/postpublish.js
+++ b/packages/editor/src/components/post-publish-panel/postpublish.js
@@ -123,7 +123,7 @@ export default function PostPublishPanelPostpublish( {
 	);
 
 	return (
-		<div className="post-publish-panel__postpublish">
+		<div className="post-publish-panel__postpublish is-success">
 			<PanelBody className="post-publish-panel__postpublish-header">
 				<ExternalLink ref={ postLinkRef } href={ link }>
 					{ decodeEntities( post.title ) || __( '(no title)' ) }
diff --git a/packages/editor/src/components/post-publish-panel/style.scss b/packages/editor/src/components/post-publish-panel/style.scss
index ec6fbd01cb8520..4d6027fd9df7bb 100644
--- a/packages/editor/src/components/post-publish-panel/style.scss
+++ b/packages/editor/src/components/post-publish-panel/style.scss
@@ -132,6 +132,13 @@
 	word-break: break-word;
 }
 
+.post-publish-panel__postpublish.is-success {
+	border-left: 2.5px;
+	border-style: solid;
+	border-color: #28a745;
+	padding-left: 12px;
+}
+
 .post-publish-panel__postpublish-buttons {
 	display: flex;
 	align-content: space-between;