You can set CSS color and background color to your custom order status displayed in admin order list this way:
add_action('admin_head', 'styling_admin_order_list' ); function styling_admin_order_list() { global $pagenow, $post; if( $pagenow != 'edit.php') return; // Exit if( get_post_type($post->ID) != 'shop_order' ) return; // Exit // HERE we set your custom status $order_status = 'Dispatched'; // <==== HERE ?> <style> .order-status.status-<?php echo sanitize_title( $order_status ); ?> { background: #d7f8a7; color: #0c942b; } </style> <?php }
Code goes in function.php file of your active child theme (or active theme). Tested and works.