Hello,
Add the next code in Theme Options > Theme custom CSS > Global custom CSS:
.woocommerce-message, .woocommerce-error, .woocommerce-info, .dokan-info, .dokan-error, .dokan-alert, .dokan-alert-success, .mc4wp-alert, .woocommerce-order-overview-wrapper ~ p { background-color: #a30865; }
Regards
