diff --git a/x-pack/plugins/lens/public/editor_frame_service/editor_frame/config_panel/layer_panel.scss b/x-pack/plugins/lens/public/editor_frame_service/editor_frame/config_panel/layer_panel.scss
index 98e1571dcb605..0f512e535c9d1 100644
--- a/x-pack/plugins/lens/public/editor_frame_service/editor_frame/config_panel/layer_panel.scss
+++ b/x-pack/plugins/lens/public/editor_frame_service/editor_frame/config_panel/layer_panel.scss
@@ -114,6 +114,14 @@
   right: 0;
 }
 
+.lnsLayerPanel__palette {
+  border-radius: 0 0 ($euiBorderRadius - 1px) ($euiBorderRadius - 1px);
+
+  &::after {
+    border: none;
+  }
+}
+
 .lnsLayerPanel__dimensionLink {
   width: 100%;
 
diff --git a/x-pack/plugins/lens/public/editor_frame_service/editor_frame/config_panel/palette_indicator.tsx b/x-pack/plugins/lens/public/editor_frame_service/editor_frame/config_panel/palette_indicator.tsx
index e11e0af952d74..b27451236e3b4 100644
--- a/x-pack/plugins/lens/public/editor_frame_service/editor_frame/config_panel/palette_indicator.tsx
+++ b/x-pack/plugins/lens/public/editor_frame_service/editor_frame/config_panel/palette_indicator.tsx
@@ -12,7 +12,11 @@ export function PaletteIndicator({ accessorConfig }: { accessorConfig: AccessorC
   if (accessorConfig.triggerIcon !== 'colorBy' || !accessorConfig.palette) return null;
   return (
     <div className="lnsLayerPanel__paletteContainer">
-      <EuiColorPaletteDisplay size="xs" palette={accessorConfig.palette} />
+      <EuiColorPaletteDisplay
+        className="lnsLayerPanel__palette"
+        size="xs"
+        palette={accessorConfig.palette}
+      />
     </div>
   );
 }