A blatant offence or injustice is a glaring or obvious one: She said she was out, but that's a blatant lie as I saw her through the window. A flagrant offence is similar but stronger, implying a deliberate flouting of a law or code of behaviour: The judge's verdict was thought to be a flagrant miscarriage of justice.
The ‘Sun of May’ was added in 1818. The blue bands are a shade known as ‘celeste’, said to be the colour of the sky which inspired Argentine revolutionary Manuel Belgrano before battle. Effective date: 16 August 1985.