diff --git a/packages/main/src/themes/ColorPalette.css b/packages/main/src/themes/ColorPalette.css
index d30219e69c619..d34acb7bde2fa 100644
--- a/packages/main/src/themes/ColorPalette.css
+++ b/packages/main/src/themes/ColorPalette.css
@@ -116,4 +116,5 @@
 .ui5-cp-default-color-button,
 .ui5-cp-more-colors {
 	padding: 0.0625rem;
+	border-radius: 0;
 }
\ No newline at end of file