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Pigments and dyesArcheologists discover hidden tomb untouched for 600 years that's 'like a treasure chest'FestivalsShrichakra Rangoli: How ancient India turned geometry, mathematics and cosmic thought into a sacred art formFestivalsPhotos of the weekColour of the yearEvery 2027 Color of the Year We Know So FarFashion and designThe 8 Colors Fashion Girls are Building Their Fall Wardrobes AroundFestivalsIn India, Holi welcomes spring with a Festival of ColorsColour of the yearTomโ€™s Watch Bar Partners With Dodgers Fan Club Pantone 294Craft and textilesMore clues to Maya blueCraft and textilesDesigners Say These 6 Unexpected Paint Colors Can Make Any Room Feel Instantly Warmer and More InvitingCraft and textilesMacron and UYBA Volley present the new 2026/27 Game SetPigments and dyesArcheologists discover hidden tomb untouched for 600 years that's 'like a treasure chest'FestivalsShrichakra Rangoli: How ancient India turned geometry, mathematics and cosmic thought into a sacred art formFestivalsPhotos of the weekColour of the yearEvery 2027 Color of the Year We Know So FarFashion and designThe 8 Colors Fashion Girls are Building Their Fall Wardrobes AroundFestivalsIn India, Holi welcomes spring with a Festival of ColorsColour of the yearTomโ€™s Watch Bar Partners With Dodgers Fan Club Pantone 294Craft and textilesMore clues to Maya blueCraft and textilesDesigners Say These 6 Unexpected Paint Colors Can Make Any Room Feel Instantly Warmer and More InvitingCraft and textilesMacron and UYBA Volley present the new 2026/27 Game Set
Rang

Blue

Lapis, indigo and the sea: ultramarine, cobalt, Prussian blue and the blues of denim and sky. 99 colours written up on Rang so far.

What blue means, country by country

64 countries. The same colour, read differently.

๐Ÿ‡ฆ๐Ÿ‡ซ Afghanistan

Lapis lazuli has been mined in the mountains of Badakhshan for more than six thousand years. Ground to powder it gave ultramarine, the costliest blue in European painting.

Royalty and powerSacred and holyAweSource: Lapis lazuli
๐Ÿ‡ฆ๐Ÿ‡ซ Afghanistan

The chadari is a full-length covering for women with a mesh panel over the eyes. In Kabul and the north it is most often a light blue.

Protection and healingSource: Burqa
๐Ÿ‡ฆ๐Ÿ‡ฒ Armenia

The blue band of the flag stands for the wish of the Armenian people to live under peaceful skies. The red above it is for the highlands and the struggle to survive.

Politics and protestHopeSource: Flag of Armenia
๐Ÿ‡ฆ๐Ÿ‡ท Argentina

The flag is sky blue, white and sky blue, created by Manuel Belgrano in 1812. National teams are called the Albiceleste, the white and sky blue.

Politics and protestPrideSource: Flag of Argentina
๐Ÿ‡ฆ๐Ÿ‡ท Argentina

Boca Juniors play in blue and gold. The club's story is that in 1907 it took the colours of the flag of the next ship into port, which was Swedish.

Festival and celebrationPrideSource: Boca Juniors
๐Ÿ‡ฆ๐Ÿ‡บ Australia

To be true blue is to be honestly and loyally Australian. The phrase is older than the country, but Australians have made it their own.

Politics and protestTrustSource: True Blue (John Williamson song)
๐Ÿ‡ฆ๐Ÿ‡บ Australia

The Torres Strait Islander flag has a blue band for the sea between green bands for the land. A white dhari, a dancer's headdress, sits at the centre.

Politics and protestNature and renewalSource: Torres Strait Islander flag
๐Ÿ‡ง๐Ÿ‡ท Brazil

Light blue and white are the colours of Iemanja, the sea goddess of Candomble and Umbanda. On 2 February in Salvador her followers send flowers and gifts out to sea.

Sacred and holyCalmSource: Yemแปja
๐Ÿ‡ง๐Ÿ‡ผ Botswana

The light blue of the flag stands for rain. In this dry country the word pula means rain, blessing and the national currency.

Nature and renewalLuck and prosperityHopeSource: Flag of Botswana
๐Ÿ‡จ๐Ÿ‡ฆ Canada

The flag of Quebec, the Fleurdelise, is blue with a white cross and four white lilies. Blue is the colour of Quebec nationalism and of the Parti Quebecois.

Politics and protestPrideSource: Flag of Quebec
๐Ÿ‡จ๐Ÿ‡ฑ Chile

The flag is called La Estrella Solitaria, the lone star. Its blue square stands for the sky and the Pacific, white for the snow of the Andes and red for blood shed for independence.

Politics and protestPrideSource: Flag of Chile
๐Ÿ‡จ๐Ÿ‡ด Colombia

Blue is the colour of the Conservative Party, the old rival of the Liberals. Whole towns were once known as blue or red by the party they backed.

Politics and protestSource: Colombian Conservative Party
๐Ÿ‡จ๐Ÿ‡บ Cuba

The flag has three blue stripes for the three old departments of the island, two white ones for the purity of the cause, and a red triangle with a white star.

Politics and protestSource: Flag of Cuba
๐Ÿ‡จ๐Ÿ‡ฟ Czech Republic

The flag is white over red, the colours of Bohemia, with a blue wedge added in 1920 so that it could be told from the Polish flag.

Politics and protestSource: Flag of the Czech Republic
๐Ÿ‡ฉ๐Ÿ‡ช Germany

The blue flower, die blaue Blume, comes from a novel by Novalis. It became the emblem of German Romanticism and stands for longing for what cannot be reached.

Love and desireNostalgiaSource: Blue flower
๐Ÿ‡ฉ๐Ÿ‡ช Germany

Prussian blue, one of the first modern synthetic pigments, was made by accident in Berlin in the early 1700s. It later coloured the coats of the Prussian army.

Nature and renewalSource: Prussian blue
DK

Royal Copenhagen porcelain is hand-painted in cobalt blue on white. Its first pattern, Blue Fluted, has been made since the factory opened in 1775.

Royalty and powerSource: Royal Copenhagen
๐Ÿ‡ช๐Ÿ‡ช Estonia

The flag is blue, black and white. Blue is for the sky, lakes and sea, black for the soil and the dark past, and white for snow, birch bark and hope.

Politics and protestNature and renewalHopeSource: Flag of Estonia
๐Ÿ‡ช๐Ÿ‡ฌ Egypt

Ancient craftsmen made Egyptian blue, one of the first synthetic pigments, and blue-glazed faience for amulets. Blue stood for the sky and the Nile.

Sacred and holyProtection and healingAweSource: Egyptian blue
๐Ÿ‡ช๐Ÿ‡ฌ Egypt

Many households hang a blue glass bead with an eye on it by the door or in the car to keep off the evil eye, known as hasad. Blue eye beads were already made in ancient Egypt.

Protection and healingSource: Nazar (amulet)
๐Ÿ‡ช๐Ÿ‡ธ Spain

The Falange, the fascist party of the Franco years, wore blue shirts, and its song Cara al Sol speaks of the new shirt. Today blue is the colour of the conservative People's Party.

Politics and protestSource: Falange Espaรฑola de las JONS
๐Ÿ‡ช๐Ÿ‡น Ethiopia

The blue disc at the centre of the flag, added in 1996, stands for peace. The star on it is for the unity and equality of the country's peoples.

Politics and protestTrustSource: Emblem of Ethiopia
๐Ÿ‡ซ๐Ÿ‡ฎ Finland

The flag is a blue cross on white, called the Siniristilippu. The poet Zachris Topelius proposed the colours: blue for the lakes and white for the snow.

Politics and protestNature and renewalPrideSource: Flag of Finland
๐Ÿ‡ซ๐Ÿ‡ฏ Fiji

The light blue field of the flag stands for the Pacific Ocean around the islands. It set the flag apart from the dark blue colonial ensign.

Politics and protestNature and renewalPrideSource: Flag of Fiji
๐Ÿ‡ซ๐Ÿ‡ท France

Blue was the colour of the French kings, whose arms were gold lilies on blue. It is the first band of the tricolour, and national sports teams are called Les Bleus.

Politics and protestRoyalty and powerPrideSource: Bleu de France (colour)
๐Ÿ‡ฌ๐Ÿ‡ง United Kingdom

At Oxford and Cambridge a blue is the award given to those who represent the university in sport. Oxford's is dark blue and Cambridge's light blue, as worn in the Boat Race.

Festival and celebrationPrideSource: Blue (university sport)
๐Ÿ‡ฌ๐Ÿ‡ท Greece

The flag is blue and white, with nine stripes and a white cross. The colours are usually read as the sea and sky and the white of the waves and clouds.

Politics and protestNature and renewalPrideSource: Flag of Greece
๐Ÿ‡ฌ๐Ÿ‡ท Greece

A blue glass eye, the mati, is worn on a chain or hung in homes and cars against the evil eye. Blue is held to be the colour that turns the harm back.

Protection and healingSource: Evil eye
๐Ÿ‡ฌ๐Ÿ‡น Guatemala

The flag has two sky-blue bands with white between. The blue stands for the Pacific and the Caribbean on either side of the land, and for the sky.

Politics and protestSource: Flag of Guatemala
๐Ÿ‡ญ๐Ÿ‡ท Croatia

The flag is red, white and blue, the Pan-Slavic colours, with the chequered shield at the centre under a crown of five older regional arms.

Politics and protestSource: Flag of Croatia
๐Ÿ‡ฎ๐Ÿ‡ช Ireland

Before green took over, blue was the colour tied to Ireland and its patron saint. A shade called Saint Patrick's blue is still used on the President's flag behind the gold harp.

Sacred and holyRoyalty and powerSource: St. Patrick's blue
๐Ÿ‡ฎ๐Ÿ‡ฑ Israel

The flag is white with two blue stripes and a Star of David. The stripes recall the tallit, the Jewish prayer shawl, which is white with blue or black bands.

Sacred and holyPolitics and protestPrideSource: Flag of Israel
๐Ÿ‡ฎ๐Ÿ‡ฑ Israel

Tekhelet is the blue dye the Torah commands for one thread of the fringes on a prayer shawl. The method was lost for centuries, and some Jews now use a dye made from sea snails.

Sacred and holyAweSource: Tekhelet
๐Ÿ‡ฎ๐Ÿ‡ณ India

Krishna, Rama and Vishnu are painted with blue skin, the colour of the sky and the deep sea. The wheel at the centre of the national flag, the Ashoka Chakra, is navy blue.

Sacred and holyAweSource: Krishna
๐Ÿ‡ฎ๐Ÿ‡ณ India

Blue is the colour of Dalit politics. Followers of B. R. Ambedkar carry blue flags, and the Bahujan Samaj Party campaigns under a blue flag with an elephant.

Politics and protestPrideSource: Bahujan Samaj Party
๐Ÿ‡ฎ๐Ÿ‡ถ Iraq

The Ishtar Gate of Babylon, built under Nebuchadnezzar II, was faced with deep blue glazed bricks set with bulls and dragons. The blue imitated lapis lazuli.

Sacred and holyProtection and healingAweSource: Ishtar Gate
๐Ÿ‡ฎ๐Ÿ‡ธ Iceland

The flag is blue with a red cross edged in white. The colours are read as the three elements of the land: blue mountains, white ice and snow, and red volcanic fire.

Politics and protestNature and renewalPrideSource: Flag of Iceland
๐Ÿ‡ฎ๐Ÿ‡น Italy

National sports teams play in blue and are called the Azzurri. Blue was the colour of the House of Savoy, which ruled Italy until 1946, and does not appear on the flag.

Royalty and powerFestival and celebrationPrideSource: National colours of Italy
๐Ÿ‡ฏ๐Ÿ‡ต Japan

Indigo dyeing, called aizome, clothed ordinary people in deep blue through the Edo period. The men's national football team plays in blue and is nicknamed Samurai Blue.

Festival and celebrationPrideSource: Japan national football team
๐Ÿ‡ฐ๐Ÿ‡ช Kenya

In Maasai beadwork each colour has a meaning tied to cattle and the land. Blue is the sky that gives rain, and so the colour of Enkai, God.

Sacred and holySource: Maasai people
๐Ÿ‡ฐ๐Ÿ‡ญ Cambodia

The flag has blue bands above and below a red one, with Angkor Wat in white. Blue stands for the king, red for the nation and white for religion.

Royalty and powerPolitics and protestSource: Flag of Cambodia
๐Ÿ‡ฐ๐Ÿ‡ท South Korea

In party politics the liberal Democratic Party campaigns in blue and the conservative People Power Party in red, the reverse of the usual left and right colours in Europe.

Politics and protestSource: People Power Party
๐Ÿ‡ฐ๐Ÿ‡ฟ Kazakhstan

The flag is sky blue with a golden sun and a steppe eagle. Blue is the colour of the open sky, sacred to the Turkic peoples as Tengri.

Sacred and holyPolitics and protestPrideSource: Flag of Kazakhstan
๐Ÿ‡ฑ๐Ÿ‡ฆ Laos

The flag has a wide blue band between two red ones, with a white disc. Blue is for the Mekong and for prosperity, and the disc for the full moon over the river.

Politics and protestSource: Flag of Laos
๐Ÿ‡ฑ๐Ÿ‡ฐ Sri Lanka

Blue is the colour of the Sri Lanka Freedom Party, founded by S. W. R. D. Bandaranaike. The national cricket team also plays in dark blue with yellow.

Politics and protestSource: Sri Lanka Freedom Party
๐Ÿ‡ฑ๐Ÿ‡ธ Lesotho

The flag is blue, white and green: blue for rain, white for peace and green for prosperity.

Nature and renewalPolitics and protestHopeSource: Flag of Lesotho
๐Ÿ‡ฒ๐Ÿ‡ฆ Morocco

The old town of Chefchaouen in the Rif mountains is washed in shades of blue. The reasons given vary: a Jewish custom, keeping houses cool, or keeping mosquitoes away.

Protection and healingCalmSource: Chefchaouen
๐Ÿ‡ฒ๐Ÿ‡ฆ Morocco

Fes is known for pottery painted in cobalt blue on white, called Fassi blue. In Marrakesh a strong ultramarine is named Majorelle blue after the garden where it was used.

Nature and renewalSource: Majorelle Blue
๐Ÿ‡ฒ๐Ÿ‡ฑ Mali

Tuareg men of the Sahara wear the tagelmust, a long veil and turban dyed with indigo. The dye rubs off on the skin, which is why they are called the blue people.

Protection and healingPrideSource: Litham
๐Ÿ‡ฒ๐Ÿ‡ณ Mongolia

The khadag is a silk scarf offered as a mark of respect and tied to sacred cairns. The blue one is the most valued, for the eternal blue sky.

Sacred and holyAweSource: Khata
๐Ÿ‡ฒ๐Ÿ‡ฝ Mexico

Maya blue is a bright, lasting pigment made by heating indigo with a special clay. Maya painters used it on murals, pottery and offerings to the rain god.

Sacred and holySource: Maya blue
๐Ÿ‡ณ๐Ÿ‡ฆ Namibia

The flag has blue for the sky, the Atlantic and rain, red for the people, green for the land, and a golden sun for life and energy.

Politics and protestNature and renewalSource: Flag of Namibia
๐Ÿ‡ณ๐Ÿ‡ฌ Nigeria

Adire is the indigo-dyed cloth of the Yoruba, made by women in Abeokuta and Ibadan. Patterns are tied, stitched or painted with cassava paste before the cloth goes into the dye.

Protection and healingSource: Adire (textile art)
๐Ÿ‡ณ๐Ÿ‡ฑ Netherlands

Delft blue is tin-glazed pottery painted in blue on white. Potters in Delft began making it in the 1600s as a cheaper answer to Chinese porcelain.

Nature and renewalSource: Delftware
๐Ÿ‡ณ๐Ÿ‡ต Nepal

The blue border of the flag stands for peace. The crimson inside it is read as the bravery of the Nepali people.

Politics and protestCalmSource: Flag of Nepal
๐Ÿ‡ต๐Ÿ‡ฆ Panama

The flag's blue stood for the Conservative Party and its red for the Liberals. The white ground stood for peace between them.

Politics and protestSource: Flag of Panama
๐Ÿ‡ต๐Ÿ‡ญ Philippines

The blue band of the flag stands for peace, truth and justice. The exact shade has changed over the years and was fixed as royal blue by law in 1998.

Politics and protestSource: Flag of the Philippines
๐Ÿ‡ต๐Ÿ‡น Portugal

Blue and white painted tiles, azulejos, cover churches, stations and house fronts. The fashion for blue on white took hold in the late 1600s under the influence of Chinese porcelain and Dutch Delft.

Sacred and holySource: Azulejo
๐Ÿ‡ท๐Ÿ‡ด Romania

The painted monastery of Voronet in Bukovina is covered in frescoes on a deep blue ground. The shade is known as Voronet blue.

Sacred and holyAweSource: Voroneศ› Monastery
๐Ÿ‡ท๐Ÿ‡บ Russia

Russian has two basic words for blue: siniy for dark blue and goluboy for light blue. Speakers treat them as two colours, as English speakers treat red and pink.

Nature and renewalSource: Blueโ€“green distinction in language

Blue in the swatch book

166 named values.

Open the swatch book
Aero#7CB9E8Air superiority blue#72A0C1Alice blue#F0F8FFAzure#007FFFAzure (X11/web color)#F0FFFFBaby blue#89CFF0Baby blue eyes#A1CAF1Beau blue#BCD4E6B'dazzled blue#2E5894Blue (Munsell)#0093AFBleu de France#318CE7Blue#0000FFBlue (Crayola)#1F75FEBlue (pigment)#333399Blue bell#A2A2D0Blue-gray#6699CCBlue jeans#5DADECBlue sapphire#126180Blue yonder#5072A7Bluetiful#3C69E7Carolina blue#56A0D3Cerulean#007BA7Cerulean blue#2A52BECerulean frost#6D9BC3Cerulean (RGB)#0040FFColumbia Blue#B9D9EBConnor's Lakefront#175A6CCornflower blue#6495EDCosmic cobalt#2E2D88Dark electric blue#536878Dark sky blue#8CBED6Dark slate blue#483D8BDenim#1560BDDenim blue#2243B6Deep sky blue#00BFFFDodger blue#1E90FFDuke blue#00009CFrench blue#0072BBFrench sky blue#77B5FEGlaucous#6082B6Green-blue#1164B4Indigo dye#00416AHonolulu blue#006DB0Iceberg#71A6D2Independence#4C516DIndigo#6A5DFFInternational Klein Blue#130A8FLavender blue#CCCCFFLapis lazuli#26619CLavender (web)#E6E6FALiberty#545AA7Light blue#ADD8E6Light cornflower blue#93CCEALight periwinkle#C5CBE1Light sky blue#87CEFALittle boy blue#6CA0DCLivid#6699CCMajorelle blue#6050DCMarian blue#00488BMaximum blue#47ABCCBlue (NCS)#0087BDMaximum blue purple#ACACE6Maya blue#73C2FBMedium blue#0000CDMedium slate blue#7B68EEMorning blue#8DA399Navy blue#000080Navy blue (Crayola)#1974D2Neon blue#4666FFNew Car#214FC6Oxford blue#002147Pale aqua#BED3E5Pale cerulean#9BC4E2Payne's grey#536878Periwinkle#CCCCFFPeriwinkle (Crayola)#C3CDE6Persian blue#1C39BBPewter Blue#8BA8B7Phthalo blue#000F89Picotee blue#2E2787Plump Purple#5946B2Prussian blue#003153Resolution blue#002387Purple navy#4E5180Queen blue#436B95Royal blue (dark)#002366Royal blue (light)#4169E1Sapphire#0F52BASt. Patrick's blue#23297ASapphire blue#0067A5Sapphire (Crayola)#2D5DA1Shadow blue#778BA5Sky blue#87CEEBSlate blue#6A5ACDSpace cadet#1D2951Spanish blue#0070B8Star command blue#007BB8Steel blue#4682B4True Blue#2D68C4Trypan Blue#1C05B3Tufts blue#3E8EDEUA blue#0033AAUltramarine#120A8FUltramarine blue#4166F5United Nations blue#009EDBUranian blue#AFDBF5USAFA blue#004F98Vantg blue#5271FFViolet-blue#324AB2Weezy Blue#189BCCWild blue yonder#A2ADD0Yale Blue#00356BYInMn Blue#2E5090Zaffer (Zaffre)#0014A8Masuhana-iro่ˆ›่Šฑ่‰ฒ#4D646CHanada็ธน#044F67Noshimehana-iro็†จๆ–—็›ฎ่Šฑ่‰ฒ#344D56Omeshionandoๅพกๅฌๅพก็ดๆˆธ#3D4C51Sora-iro็ฉบ่‰ฒ#4D8FACGunjล-iro็พค้’่‰ฒ#5D8CAE
Blue Indigoidine A blue pigment made by certain bacteria and studied for its unique colourPigment #003399 Cobalt glass A deep blue glass coloured with cobalt compounds, used in art and decoration for centuriesPigment ยท ๐Ÿ‡ช๐Ÿ‡ฌ Egypt +2 #1E90FF Dodger blue A vivid web blue named after the Los Angeles Dodgers baseball teamNamed shade #002147 Oxford Blue A deep blue shade representing the University of OxfordNamed shade Blue Blue hair Hair coloured blue by dye, art, or natureโ€™s rare effectsNamed shade ยท ๐Ÿ‡ฏ๐Ÿ‡ต Japan +5 #B9D9EB Columbia blue A pale blue shade first used by Columbia University and its student societiesNamed shade ยท ๐Ÿ‡บ๐Ÿ‡ธ United States Blue National colours of Ukraine Blue and gold as the colours of Ukraineโ€™s flag, arms and national teamsNational or team colour ยท ๐Ÿ‡บ๐Ÿ‡ฆ Ukraine #A4DDED Non-photo blue A pale blue used in art and print that does not show up in reproductionNamed shade #00356B Yale Blue A deep blue shade linked to Yale University since the 19th centuryNamed shade #7CA2B8 Horizon blue A blue-grey shade famous for French army uniforms in World War INamed shade ยท ๐Ÿ‡ซ๐Ÿ‡ท France Blue Azure spar A partly obsolete name for several bright blue ornamental mineralsNamed shade Blue Azurite A blue pigment ground from copper-rich mineral, common in medieval and Renaissance artPigment ยท ๐Ÿ‡ช๐Ÿ‡ฌ Egypt +2 #56A0D3 Carolina blue A light blue shade tied to the University of North CarolinaNamed shade ยท ๐Ÿ‡บ๐Ÿ‡ธ United States #00009C Duke blue A deep blue shade linked to Duke Universityโ€™s identity and traditionNamed shade Blue Blue A colour long prized in art, faith and dress, from ancient Egypt to modern flagsBasic colour ยท ๐Ÿ‡ช๐Ÿ‡ฌ Egypt +5 #1E3765 U of T Blue A deep navy blue used by the University of Toronto since its foundingNamed shade ยท ๐Ÿ‡จ๐Ÿ‡ฆ Canada Blue Engineer's blue A blue paste used to check how closely two surfaces fit togetherPigment #00488B Marian blue A deep blue shade linked with images of the Virgin Mary in Christian artNamed shade ยท ๐Ÿ‡ฆ๐Ÿ‡ซ Afghanistan #2072AF Bice A historic blue or green pigment once made from copper mineralsPigment Blue Coventry blue A blue cloth from Coventry, dyed with woad and known for its lasting colourNamed shade Blue Blue pigment Pigments that give blue colour to paints, inks, and art from ancient times to todayPigment ยท ๐Ÿ‡ช๐Ÿ‡ฌ Egypt +5 Blue Butterfly pea blue A vivid blue from the butterfly pea flower, used in Asian food and drinkColour named from nature ยท ๐Ÿ‡ฎ๐Ÿ‡ฉ Indonesia +5 Blue Indigofera tinctoria A shrub whose leaves yield natural indigo dyeColour named from nature ยท ๐Ÿ‡ฎ๐Ÿ‡ณ India +5 Blue Indigo carmine A water-soluble blue dye made from indigo, used in food, medicine and sciencePigment ยท ๐Ÿ‡บ๐Ÿ‡ธ United States Blue Indigofera suffruticosa A shrub from the Americas used to make indigo dye and Maya blue pigmentColour named from nature ยท ๐Ÿ‡บ๐Ÿ‡ธ United States +5 Blue Brilliant blue FCF A synthetic blue dye widely used in foods, drinks, and medicinesPigment ยท ๐Ÿ‡บ๐Ÿ‡ธ United States Blue Patent Blue V A synthetic blue dye used in food, medicine, and chemistryDye Blue Desmodium incanum blue dye A blue dye obtained from the creeping beggarweed plant in West AfricaDye Blue Pala indigo A tree from India whose leaves yield a blue dye like indigoColour named from nature ยท ๐Ÿ‡ฎ๐Ÿ‡ณ India +4 Blue Vaccinium bracteatum dye A bluish-violet dye from the leaves of an Asian bilberry shrubDye ยท ๐Ÿ‡จ๐Ÿ‡ณ China +2 Blue Genipin A natural compound used to make blue pigment from gardenia fruitColour named from nature Blue Viologen Organic compounds that switch between blue, violet and yellow when reduced or oxidisedPigment Blue Bluing A blue dye added to laundry to make white fabrics look brighterTraditional colour ยท ๐Ÿ‡ฌ๐Ÿ‡ง United Kingdom +5 Blue Formazan A group of synthetic dyes with colours from dark blue to deep red or orangePigment Blue Dianella sandwicensis blue dyeสปukiสปuki A blue dye once made from the berries of the Hawaiian lilyDye Blue Marking blue A blue dye for marking metal in machining and layout workDye Blue Croconate blue A synthetic blue dye made from croconic acid and malononitrileDye Blue Yeomsaek์—ผ์ƒ‰ Traditional Korean dyeing using natural colourings, especially indigoTraditional colour Blue Azuline A blue synthetic dye from coal tar, used for silk in the 1860sDye Blue Disperse blue dye A family of blue dyes used mainly for synthetic fabricsDye #0093AF Blue (Munsell) A vivid blue from the Munsell colour system, between azure and cyanStandard colour #0087BD Blue (NCS) A blue from the Natural Color System, close to azure and bordering on cyanStandard colour #333399 Blue (pigment) A standard blue mixed from cyan and magenta inks in printingNamed shade #00416A Indigo dye A greenish dark blue made from tropical indigo plants and woadDye ยท ๐Ÿ‡ฎ๐Ÿ‡ณ India +1 #130A8F International Klein Blue A deep blue first mixed by the artist Yves KleinNamed shade #CCCCFF Lavender blue A pale blue-lavender shade first named in 1926Named shade #32127A Persian indigo A deep blue-purple once common in 19th-century navy uniformsNamed shade #002387 Resolution blue A strong blue shade named for a bay in New ZealandNamed shade ยท ๐Ÿ‡ณ๐Ÿ‡ฟ New Zealand

Photo credits on this page

The small pictures above come from Wikimedia Commons under free licences. Some are cropped to fit.

The weekly palette

Every Monday: seven colours you may not know, what the world is wearing this week, and one idea about colour.