Colors questions

Singlet oxygen glows red as it decays from the singlet excited state to the triplet ground state : Singlet oxygen is utilised in organic syntheses, eg. Diels-Alder reaction. Ozone has a bluish colour.

The Google colors found in the logo are blue, red, yellow and green. The original graphic designer of this logo was Ruth Kedar. The colors chosen had a meaning behind them because they were the primary colors. Google intentionally used a secondary color on the L to show that Google does not always follow the rul

Most of London taxis have a distinctive shape and black color, because of this they are commonly called "black cabs". Black taxis are one of the most recognizable symbols of London. Currently, however, taxis are appearing more often in other colors. Old London taxis are usually used for advertising purposes. In 2002, fifty gold-colored taxis were produced to commemorate the golden jubilee of Queen Elizabeth II.

The flag refers to french revolution, but commonly it's said that green means hope, white means catholicism and red means bravery. All these terms refers to people who fought to unification of Italy

Garnets come in a variety of colors and have many different varieties, except blue. The most widely-known color of Garnet gemstones is dark red. When the term "Garnet" is used, it is usually connotative of the dark red form.

Elementary art education materials, dictionaries, and electronic search engines often define primary colors effectively as conceptual colors (generally red, yellow, and blue; or red, green, and blue) that can be used to mix "all" other colors.

Since 7th April, 1992 the national flag of Albania has been a red rectangle (proportion 5:7) with a silhouetted black double-headed eagle in the center.

The color blue in many cultures is significant in religious beliefs, brings peace, or is believed to keep the bad spirits away. In Iran, blue is the color of mourning while in the West the something blue bridal tradition represents love

Caput mortuum (Latin for "dead head"), also known as cardinal purple, is the name given to a purple variety of haematite iron oxide pigment, used in oil paints and paper dyes. It was a very popular colour for painting the robes of religious figures and important personages.

The national flag of Afghanistan consists of a vertical tricolor with the classical National Emblem in the center. The black color represents its troubled 19th century history as a protected state, the red color represents the blood fought for independence and the green represents hope and prosperity for the future.