Orange (colour) jackfruit tree. In Europe and America orange and yellow are the colours most associated with amusement, frivolity and entertainment. In this regard, orange is the exact opposite of its complementary colour, blue, the colour of calm and reflection. Mythological paintings traditionally showed Bacchus (known in Greek mythology as Dionysus), the god of wine, ritual madness and ecstasy, dressed in orange. Clowns have long worn orange wigs. Toulouse-Lautrec used a palette of yellow, black and orange in his posters of Paris cafes and theatres, and Henri Matisse used an orange, yellow and red palette in his painting, the "Joy of Living".
Etiquette in Europe region. For example, addressing a person with an honorific or title may be expected in some languages, but seen as intrusive or too formal in others. In many parts of Europe, using someone's first name also denotes a certain level of friendship. In social interactions with strangers, the last name and/or more formal mode of address is used, usually until the people involved agree to move to an informal level. However, this may not apply among young people, among members of particular groups (e.g. students) or in informal settings. Also among countries that border each other vast differences can be