Definition of Queen's colour in English:

Queen's colour

noun

  • (in the UK) a silk union flag carried by a particular regiment along with its regimental colour.

    • ‘However, the Queen's Colour is only paraded on certain occasions.’
    • ‘The Queen's Colour is a reminder to all ranks of their loyalty and duty to their Sovereign and their country.’
    • ‘The Trooping of the Queen's Colour is held on the Saturday of the Queen's Birthday long weekend in June each year’