Question: What are the colors of the tricolour flag that was adopted in 1919?

Context:
Flag of Thailand
The flag of the Kingdom of Thailand (Thai: ธงไตรรงค์ , "Thong Trairong", meaning "tricolour flag”) shows five horizontal stripes in the colours red, white, blue, white and red, with the central blue stripe being twice as wide as each of the other four.
 The design was adopted on 28 September 1917, according to the royal decree issued by Rama VI that year.
 Since 2016, that day is a national holiday in Thailand celebrating the nation's flag.
Tricolour (flag)
A tricolour or tricolor is a type of flag or banner design with a triband design which originated in the 16th century as a symbol of republicanism, liberty or indeed revolution.
 The flags of France, Italy, Romania, Mexico, and Ireland were all first adopted with the formation of an independent republic in the period of the French Revolution to the Revolutions of 1848, with the exception of the Irish tricolour, which dates from 1848 but was not popularised until the Easter Rising in 1916 and adopted in 1919.
Liberty Leading the People
Liberty Leading the People (French: "La Liberté guidant le peuple" ] ) is a painting by Eugène Delacroix commemorating the July Revolution of 1830, which toppled King Charles X of France.
 A woman personifying the concept and the Goddess of Liberty leads the people forward over a barricade and the bodies of the fallen, holding the flag of the French Revolution – the tricolour flag, which remains France's national flag – in one hand and brandishing a bayonetted musket with the other.
 The figure of Liberty is also viewed as a symbol of France and the French Republic known as Marianne.
Pan-Slavic colors
The Pan-Slavic colors — red, blue and white — were defined by the Prague Slavic Congress, 1848, based on the flag of Russia, which was introduced in the late 17th century.
 The tricolour flag of Russia was itself inspired by the flag of the Netherlands.
 Historically, many Slavic nations and states adopted flags and other national symbols that used some combination of those three colors, but rarely all three of them.
 List of Slavic countries that use or have used the colors include: Russia, Yugoslavia, Czechoslovakia, Czech Republic, Montenegro, Slovakia, Croatia, Serbia and Slovenia.
 Bosnia and Herzegovina, Belarus, Bulgaria, Macedonia, Poland and Ukraine have never adopted the colors.
Adidas Tricolore
Tricolore by Adidas was the official match ball of 1998 FIFA World Cup in France.
 The tricolour flag and cockerel, traditional symbols of France were used as inspiration for the design.
 It was the first multi-coloured ball to be used in the tournament's final stage and was also the final World Cup ball to bear the classic Tango design, introduced in the 1978 tournament.
 The design of blue triads decorated with cockerel motifs was adopted to represent the colours of the flag of France.
 Tricolore was also the first Adidas World Cup match ball manufactured outside of Europe (made in Morocco & Indonesia) since the 1970 Adidas Telstar.
 "Tricolore" means "three-colored" in French.
Flag of Hungary
The flag of Hungary (Hungarian: "Magyarország zászlaja" ) is a horizontal tricolour of red, white and green.
 In this exact form, it has been the official flag of Hungary since May 23, 1957.
 The flag's form originates from national republican movements of the 18th and 19th centuries, while its colours are from the Middle Ages.
 The current Hungarian tricolour flag is the same as the republican movement flag of the United Kingdom (used since 1816).
Flag of Azerbaijan
The flag of Azerbaijan (Azerbaijani: "Azərbaycan bayrağı" ) is a horizontal tricolour featuring three equally sized fesses of blue, red, and green, with a white crescent and an eight-pointed star in the center.
 The tricolour replaced an earlier design used by the Azerbaijan SSR.
 The blue symbolizes Azerbaijan's Turkic heritage, the red stands for progress, and the green represents Islam.
 The official colors and size were adopted on February 5, 1991.
 This flag was used from November 9, 1918 to 1920, when Azerbaijan was independent, and it was revived with slight variations on February 5, 1991.
 The nickname for the flag is Üçrəngli Bayraq, which means The Tricolour Flag.
Flag of France
The flag of France (French: "Drapeau français" ) is a tricolour flag featuring three vertical bands coloured blue (hoist side), white, and red.
 It is known to English speakers as the French Tricolour or simply the Tricolour ().
Statenvlag
The Statenvlag ("States Flag") is the name of the flag of the States-General of the Dutch Republic, the red-white-blue tricolour flag replacing the older orange-white-blue Prince's Flag in the mid 17th century.
Flag of Ireland
The national flag of Ireland (Irish: "bratach na hÉireann" ) – frequently referred to as the Irish tricolour ("trídhathach na hÉireann") – is the national flag and ensign of the Republic of Ireland.
 The flag itself is a vertical tricolour of green (at the hoist), white and orange.

Answer: green (at the hoist), white and orange