config/airflow_local_settings.py

STATE_COLORS = {
    "queued": "gray",
    "running": "lime",
    "success": "#0000FF",  # Rather than "green".
    "restarting": "violet",
    "failed": "red",
    "up_for_retry": "gold",
    "up_for_reschedule": "turquoise",
    "upstream_failed": "orange",
    "skipped": "pink",  # Rather than "hotpink".
    "deferred": "mediumpurple",
    "removed": "lightgrey",
    "scheduled": "tan",
}