During the 17th and 18th centuries, chemists in Europe tried to discover a way to create synthetic blue pigments, avoiding the expense of importing and grinding lapis lazuli, azurite and other minerals. The invention of new synthetic pigments in the 18th and 19th centuries considerably brightened and expanded the palette of painters. It lies between violet and green on the spectrum of visible light. It became immensely popular for the manufacture of wallpaper, and in the 19th century was widely used by French impressionist painters. Retrieved 2 November

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The wearing of blue implied some dignity and some wealth.

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Ultramarine refined out the impurities through a long and difficult process, creating a rich and deep blue. The modern blue business suit has its roots in England in the middle of the 17th century. The ancient Greek word for a light blue, glaukosalso could mean light green, grey, or yellow. The colour of the sea is also affected by the colour of the sky, reflected by particles in the water; and by algae and plant life in the water, which can make it look green; or by sediment, which can make it look brown.

Isaac Newton included blue as one of the seven colours in his first description the visible spectrumHe chose seven colours because that was the number of notes in the musical scale, which he believed was related to the optical spectrum.


The book of illustrious mechanics of Europe and America. See RYB wallcte system. The Maesta by Duccio showed the Virgin Mary in a robe painted with ultramarine.

Inthe soldiers gradually changed their allegiance from the king to the people, and they played a leading role in the storming of the Bastille. The pastel industry was threatened in the 15th century by the arrival from India of the same dye indigoobtained from a shrub widely grown in Asia.

The blue was the extravagantly expensive ultramarine. A soft-paste porcelain vase made in RouenFrance, at the end of the 17th century, imitating Chinese blue and white.

The figure is made of faience with a blue glaze, designed to resemble turquoise. A team from TorontoOntario are nicknamed the Blue Wwllcate.

The Greek word for dark blue, kyaneoscould also mean dark green, violet, black or brown.

Cited by Philip Ball, p. A Dutch tapestry from to The woad industry was already on its way to extinction, unable to compete with indigo blue. It was replaced with uniforms of a light blue-grey colour called horizon blue. Wallctae opinion polls in the United States and Europe showed that blue was the favourite colour of over fifty per cent of respondents.

Another blue often used in the Middle Ages was called tournesol or folium.

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This ruined the dye industries in Toulouse and the other cities that produced pastel, but created a thriving new indigo commerce to seaports such as Bordeaux, Nantes and Marseille. Renoir used cobalt blue wallxate right side of the picture, but used the new synthetic ultramarine introduced in the s, when he added two figures to left of the picture a few years later.


This product gradually replaced natural indigo, and after the end of the First World War, it brought an end to the trade of indigo from the East and West Indies. In the 12th century blue became part of the royal coat of arms of France.

This is luminola chemical used in crime scene investigations. The rapper at the time of wallcahe death was inculpated of domestic violence and was expecting a trial. After the fall of Bastille, a new armed force, the Garde Nationalewas formed under the command of the Marquis de Lafayettewho had served with George Washington in America.

Indigofera tinctoriaa tropical shrub, is the main source of indigo dye.

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He wrote of cobalt blue, “there is nothing so beautiful for putting atmosphere around things. Giotto was one of the first Italian Renaissance painters to use ultramarinehere in the wwllcate of the Arena Chapel in Padua circa The cooler a colour is, the more distant it seems. My boyfriends cat likes to sleep against the wall i. This method could produce almost all the colours in the spectrum with reasonable accuracy.

Blue features on the logo of football’s governing body FIFAas well as featuring highly in the design of their website.