The Kedahan flag is essentially a red flag with only the [|state arms of Kedah] charged on its upper hoist, the upper left quarter of the flag. The red, Kedah's traditional colour, signifies prosperity, while the flag's arms is as interpreted with the standalone arms. The flag of Kedah used from the 18th century to 1912. Flag ratio: 1:2
flies a series of Royal Standards that consist of plain coloured flags with the state arms charged at the centre or flags with a canton of a different colour containing the state arms. In addition, similarly designed Standards are also flown by high-ranking governments officials affiliated with the Sultan of Kedah. Like the [|state flag], all Standards utillise any two of or all three colours: Red, green and yellow; the colours of the arms also vary between Standards. The Standards include:
The Standard of the Sultanah: A yellow flag with a red canton containing the state arms. Similar to the original arms, the wreath and shield of the Standard's arms are yellow, while the crescent is green.
The Standard of the Crown Prince: A red flag with a yellow canton containing an entirely green state arms.
The Standard of the Bendahara : A red flag with a green canton containing an entirely yellow state arms.
As a formerly independent state, Kedah was known to fly ensigns on its ships. Among them were the [|state ensign] and civil ensign, the former similar in design as a variant of the [|Kedahan Standards], while the latter adopted a different design. The state ensign took the appearance of a Standard-like design that simply incorporates a canton containing the state arms. The flag is blue, but unlike Standards of the design, its canton is essentially design as per the state flag, coloured red and containing the state arms in its original colours. The civil ensign is of a completely different design, but incorporates all three of the state's flag colours in the form of three diagonally cut sections: A large, red, diagonal per bend stripe divides the upper fly—coloured yellow—and the lower hoist—coloured green.
Coat of arms
The Kedahan coat of arms consists of only three heraldic elements: An escutcheon, a crescent, and a wreath; the arms may be illustrated with only the aforementioned elements or included against a red ellipse. Details of the arm's heraldic elements are as followed: ;Escutcheon ;Crescent ;Wreath or garland Like the state flag, the Kedahan arms is featured on Standards and the state ensign. However, the colours used on the arms may vary but utilise red, green or yellow, with the wreath and shield given one colour while the crescent is given another or the same.
