diff --git a/gtk/theme/HighContrast/_common.scss b/gtk/theme/HighContrast/_common.scss
index 527ddc87f8..c9b35bb7da 100644
--- a/gtk/theme/HighContrast/_common.scss
+++ b/gtk/theme/HighContrast/_common.scss
@@ -2360,6 +2360,7 @@ GtkColorSwatch {
 
   // we need to re-set the shadow here since it get axed by the previous bit
   &:selected { box-shadow: $_colorswatch_shadow; }
+  GtkColorButton > & { box-shadow: none; }
 
   // border rounding
   &.top {
diff --git a/gtk/theme/HighContrast/gtk.css b/gtk/theme/HighContrast/gtk.css
index 8b12793310..9a2aa2c919 100644
--- a/gtk/theme/HighContrast/gtk.css
+++ b/gtk/theme/HighContrast/gtk.css
@@ -2573,6 +2573,8 @@ GtkColorSwatch {
       border-color: #fff; }
   GtkColorSwatch:selected {
     box-shadow: inset 0 1px rgba(0, 0, 0, 0.1), 0 1px #fff; }
+  GtkColorButton > GtkColorSwatch {
+    box-shadow: none; }
   GtkColorSwatch.top {
     border-top-left-radius: 5px;
     border-top-right-radius: 5px; }