diff --git a/htdocs/core/class/dolgraph.class.php b/htdocs/core/class/dolgraph.class.php
index 57f0bca4e36..6ef5b69ba3e 100644
--- a/htdocs/core/class/dolgraph.class.php
+++ b/htdocs/core/class/dolgraph.class.php
@@ -1211,7 +1211,7 @@ class DolGraph
 					$tmp = str_replace('#', '', $this->datacolor[$i]);
 					if (strpos($tmp, '-') !== false) {
 						$foundnegativecolor++;
-						$color = '#FFFFFF'; // If $val is '-123'
+						$color = 'rgba(0,0,0,.0)'; // If $val is '-123'
 					} else {
 						$color = "#" . $tmp; // If $val is '123' or '#123'
 					}
diff --git a/htdocs/theme/eldy/badges.inc.php b/htdocs/theme/eldy/badges.inc.php
index 1e6dfb54dbc..aae4e50fb29 100644
--- a/htdocs/theme/eldy/badges.inc.php
+++ b/htdocs/theme/eldy/badges.inc.php
@@ -246,7 +246,7 @@ function _createStatusBadgeCss($statusName, $statusVarNamePrefix = '', $commentL
 
 		if (in_array((string) $statusName, $TBadgeBorderOnly)) {
 			$thisBadgeTextColor = '#212529';
-			$thisBadgeBackgroundColor = "#fff";
+			$thisBadgeBackgroundColor = "";
 		}
 
 		if (in_array((string) $statusName, array('0', '5', '9'))) {