Aer Lingus has unveiled new-look planes as part of a re-brand.
It is the Irish carrier's first re-brand under parent company International Airlines Group (IAG).
It was bought from the State by IAG in 2015.
The planes will be primarily white in colour, instead of the usual green.
A new-look Aer Lingus plane | Image: Aer Lingus
There will be a teal colouring across the tailfin and end section of the aircraft, while parts of the wings, engines and undercarriage will also be teal.
It says the teal undercarriage means Aer Lingus will be "instantly recognisable to those on the ground".
The logo has also been changed and is a restyling of the iconic shamrock.
The company says it has been tilted "to symbolise dynamism and speed", with heart-shaped leaves "reflecting the warmth and hospitality of the brand."
The new brand is being rolled out across all platforms, with a new website and app design.
— Aer Lingus (@AerLingus) January 17, 2019
The changeover is set to be completed by 2021.
Sean Doyle is chief executive of Aer Lingus: "We're delighted to unveil our brand refresh today, which comes more than 20 years after Aer Lingus last invested in new brand livery, and reflects our position as a modern, contemporary airline."
"The refreshed brand reflects an airline that connects those living in Montreal to Marseilles; in Berlin to Boston; as well as those living in Cork to Croatia.
"The benefit for Ireland of being at the fulcrum of such connections is considerable and we in Aer Lingus are determined to realise this potential for Ireland."
Image: Jennifer Lawler
The carrier conducted extensive research across Ireland, Europe and North America to inform the re-brand.
The research confirmed the importance of the shamrock.
Chief operating officer Mike Rutter added: "The new look Aer Lingus livery consolidates our position as a modern, contemporary Irish airline on the international stage, but also allows guests who have always loved our brand to maintain a positive affiliation."
Meanwhile it is in the process of revamping its uniforms, which will be revealed in the spring.
It will be worn by all frontline ground agents and cabin crew.
The 'old' and 'new' Aer Lingus planes | File photo/Aer Lingus
The project is being led by Irish designer Louise Kennedy, who also designed the current 'teal green' uniform, and makes history in that it has been the longest-running Aer Lingus uniform.
Aer Lingus has said a modernised uniform will bring it "full circle" after a series of changes over the last three years.
It also plans to keep growing its transatlantic routes, which already carry 2.8 million passengers annually between Ireland and North America.
It has said 50% of passengers will use Dublin Airport as a travel hub.
The 'old' and 'new' Aer Lingus tailfin | File photo/Aer Lingus
It has also previously announced it is offering a complimentary glass of wine or beer with its meal service to transatlantic economy passengers, and providing free social messaging with 20MB complimentary wi-fi for Smart Fare transatlantic travellers.
The Smart Fare includes checked-in baggage.