Flag of the Czech Republic - wikipedia Flag of the Czech Republic `` Flag of Czechoslovakia '' redirects here. For the flag of Slovakia, see Flag of Slovakia. Czech Republic Use National flag, civil and state ensign Proportion 2 : 3 Adopted 1 January 1993 30 March 1920 Design Two equal horizontal bands of white ( top ) and red with a blue isosceles triangle based on the hoist side. Designed by Jaroslav Kursa The national flag of the Czech Republic ( Czech : státní vlajka České republiky ) is the same as the flag of the former Czechoslovakia. Upon the dissolution of Czechoslovakia, the Czech Republic kept the Czechoslovak flag while Slovakia adopted its own flag. The first flag of Czechoslovakia was based on the flag of Bohemia, and was white over red. This was almost identical to the flag of Poland ( only the proportion was different ), so a blue triangle was added at the hoist in 1920. The flag was banned by the Nazis in 1939, and a horizontal tricolor of white, red, and blue was enforced. The 1920 flag was restored in 1945. Contents 1 History 2 Czechoslovakia 3 Dimensions 4 Presidential standard 4.1 Previous versions 5 See also 6 Literature 7 References 8 External links History The traditional colours of Czechia, originating from a 1192 coat of arms ( depicting a rampant lion with a double silver tail on a red background ), are white and red. Due to historical considerations, the flag of the Czech Republic bears identical resemblance to that of Czechoslovakia. After the establishment of an independent Czechoslovakia in 1918, the country had been using the red and white flag of Bohemia, identical to the Polish flag. Following calls for a new flag to be adopted by the fledgling state, a committee picked a design by Jaroslav Kursa, an archivist in the Czechoslovak Ministry of the Interior. His design included the red and white horizontal stripes derived from the coat of arms of Bohemia, and added a blue wedge extended halfway along the flag. The flag was officially approved by the National Assembly of Czechoslovakia on 30 March 1920 and since then, it has been in continuous use, with the exception of the German occupation of Czechoslovakia during World War II, Additionally, during a short period following the Velvet Revolution, between 1990 and 1992, the Czech part of the Czechoslovak federated state adopted the previous red and white flag. During the 1992 negotiations on the split of Czechoslovakia, a clause forbidding the use of the state symbols of Czechoslovakia by either successor state was inserted into the legislation concerning the dissolution of the federation. The Czech Republic violated this clause, passing legislation overruling the previous agreement and keeping the use of the flag. Kingdom of Bohemia 1198 - 1918 Czechoslovakia 1918 - 1920 Czechoslovakia 1920 - 1939 Protectorate of Bohemia and Moravia 1939 - 1945 Czechoslovakia 1945 - 1992 Federal Czech Republic 1990 - 1992 Czech Republic 1993 - present Czechoslovakia Flag of Czechoslovakia ( 1920 -- 1992 ) Naval Ensign of Czechoslovakia. ( 1935 -- 1955 ) Naval Ensign of Czechoslovakia. ( 1955 -- 1960 ) Dimensions geometry vertical hoisting The blazon of this flag is per pall fesswise Argent, Azure, and Gules. The flag is formed from an isosceles triangle that extends halfway along the rectangle ( a common mistake is to draw it shorter ) and two bands : one white and one red. The most similar foreign flag is the flag of the Philippines but the latter has dimensions 1 : 2, the three colors permuted, and additional golden - yellow symbols added on it. Czech Republic tricolour Presidential Standard Standard of the President Proportion 1 : 1 Adopted 1993 ( 1918 ) Design Coat of arms with national motto `` Pravda vítězí '' ( Truth prevails ) and leaves of linden tree. Designed by Jiří Louda Another Czech official symbol is the Standard of the President of the Czech Republic. It was first introduced in 1918 for the President of Czechoslovakia. The current version, which was designed by heraldist Jiří Louda, was adopted upon the creation of an independent Czech Republic in 1993. Previous versions Presidential standard of First Czechoslovak Republic ( 1918 - 1939 ), and Czechoslovak Republic ( 1945 -- 1960 ) Presidential standard of Protectorate of Bohemia and Moravia ( 1939 -- 1945 ) Presidential standard of Czechoslovak Socialist Republic ( 1960 -- 1990 ) Presidential standard of Czech and Slovak Federative Republic ( 1990 -- 1992 ) See also The red boxer shorts over Prague Castle Literature Zbyšek Svoboda, Pavel Fojtík : brochure Naše vlajka. Vznik a vývoj české vlajky ( Our Flag. Origin and evolution of the Czech flag ), Libea, 2005, ISBN 80 - 239 - 5862 - 3. Petr Exner, Pavel Fojtík, Zbyšek Svoboda : brochure Vlajky, prapory a jejich používání ( Flags, banners and their use ), Libea, 2004, ISBN 80 - 239 - 2873 - 2. References Jump up ^ `` Czech society of vexicologists on the origin of the Czechoslovak state flag '' ( MS Word ) ( in Czech ). Retrieved 2007 - 12 - 10. Jump up ^ Government of the Czech Republic The Czech Republic 's national flag. Retrieved 4 March 2011. Jump up ^ Law defining state symbols of the Czech Republic 67 / 1990 Sb, from 13 March 1990 Jump up ^ Ústavný zákon č. 542 / 1992 Zb. o zániku Českej a Slovenskej Federatívnej Republiky, Čl. 3 ods. 2 ( Constitutional act. No. 542 / 1992 Col. on the dissolution of the Czech and Slovak Federative Republic, art. 3 sect. 2 ) Jump up ^ Law defining state symbols of the Czech Republic 3 / 1993 Sb, from 17 December 1992 ^ Jump up to : `` Zomrel heraldik Jiří Louda, autor českého štátneho znaku a prezidentskej zástavy ''. Aktuality.sk. 2 September 2015. Archived from the original on 29 September 2015. Retrieved 28 September 2015. External links Wikimedia Commons has media related to Flags of the Czech Republic. History of the Czech and Czechoslovak flag ( in Czech ) Czech Republic at Flags of the World Czech flag - facts, history, colors ( in Czech ) Czech Republic articles History Unetice culture Boii Marcomanni Samo Great Moravia Přemyslid dynasty Lands of the Bohemian Crown Czech lands ( 1526 -- 1648 ) 1648 -- 1867 1867 -- 1918 Czechoslovakia Czech Republic Geography Czech lands Protected areas Regions Rivers Urban planning Politics Administrative divisions Constitution Elections Foreign relations Government Judiciary Law enforcement Legal system LGBT history Military Parliament Political parties Economy Energy Koruna ( currency ) Oil and gas deposits Stock Exchange Tourism Transport Society Crime Demographics Education Healthcare Religion Culture Art Coat of arms Cuisine Czech language Flag Literature Music Nationalism Panelák ( architectural style ) Philosophy Public holidays Sport Television Outline Index Portal Flags of Europe Sovereign states Albania Andorra Armenia Austria Azerbaijan Belarus Belgium Bosnia and Herzegovina Bulgaria Croatia Cyprus Czech Republic Denmark Estonia Finland France Georgia Germany Greece Hungary Iceland Ireland Italy Kazakhstan Latvia Liechtenstein Lithuania Luxembourg Macedonia Malta Moldova Monaco Montenegro Netherlands Norway Poland Portugal Romania Russia San Marino Serbia Slovakia Slovenia Spain Sweden Switzerland Turkey Ukraine United Kingdom England Northern Ireland Scotland Wales Vatican City States with limited recognition Abkhazia Artsakh Kosovo Northern Cyprus South Ossetia Transnistria Dependencies and other entities Åland Faroe Islands Gibraltar Guernsey Isle of Man Jersey Svalbard Other entities European Union Sovereign Military Order of Malta Retrieved from `` https://en.wikipedia.org/w/index.php?title=Flag_of_the_Czech_Republic&oldid=803354549 '' Categories : National flags Flags of the Czech Republic National symbols of the Czech Republic Flags introduced in 1920 1920 establishments in Czechoslovakia Hidden categories : CS1 Czech - language sources ( cs ) Use dmy dates from January 2015 Articles containing Czech - language text Articles with Czech - language external links Talk Contents About Wikipedia አማርኛ Azərbaycanca Беларуская Беларуская ( тарашкевіца ) ‎ Български Bosanski Català Чӑвашла Čeština Cymraeg Dansk Deutsch Eesti Ελληνικά Español Esperanto Euskara فارسی Français Galego ગુજરાતી 한국어 Հայերեն हिन्दी Hrvatski বিষ্ণুপ্রিয়া মণিপুরী Bahasa Indonesia Íslenska Italiano עברית Basa Jawa ქართული Қазақша Latviešu Lietuvių Magyar Македонски मराठी Bahasa Melayu Nederlands 日本 語 Norsk Polski Português Română Romani Русский Sámegiella Scots Shqip Simple English Slovenčina Српски / srpski Srpskohrvatski / српскохрватски Suomi Svenska ไทย Türkçe Українська Tiếng Việt Yorùbá 中文 Edit links This page was last edited on 2 October 2017, at 00 : 46. 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Question: what flag is red and white with a blue triangle
Answer: flag of the Czech Republic