diff --git a/mod/chat/gui_ajax/theme/bubble/chat.css b/mod/chat/gui_ajax/theme/bubble/chat.css
index 035eb930317..460ae0b176b 100644
--- a/mod/chat/gui_ajax/theme/bubble/chat.css
+++ b/mod/chat/gui_ajax/theme/bubble/chat.css
@@ -242,3 +242,7 @@ Dual licensed under MIT and GNU GPLv2 © Nicolas Gallagher
     border-width: 9px 0 9px 21px;
     border-color: transparent #fff;
 }
+
+#button-send + a > i.text-info {
+    color: black !important;
+}
diff --git a/mod/chat/gui_ajax/theme/compact/chat.css b/mod/chat/gui_ajax/theme/compact/chat.css
index e2b463cc7e9..2e7be9db291 100644
--- a/mod/chat/gui_ajax/theme/compact/chat.css
+++ b/mod/chat/gui_ajax/theme/compact/chat.css
@@ -95,3 +95,7 @@
     background: #e3e8f0;
     height: 100%;
 }
+
+#button-send + a > i.text-info {
+    color: black !important;
+}