Civil Ensign of Singapore
Own work using: https://www.mpa.gov.sg/web/portal/home/port-of-singapore/circulars-and-notices/shipping-circulars/detail/mc99-13 and http://www.pantone.com/pages/pantone/colorfinder.aspx?c_id=13050 for the Pantone 032 color.
Zscout370