White tie (or evening dress, full evening dress; slang top hat and tails or white tie and tails, tailsuit, tails) is the most formal evening dress code in Western fashion. It is worn to ceremonial occasions such as state dinners in some countries, as well as to very formal balls and evening weddings. The chief components for men are the black dress coat commonly known as an evening tailcoat, white bow tie, white waistcoat and starched wing collar shirt, while women wear a suitable dress for the occasion, such as an evening gown.

As evening dress, white tie is traditionally considered correct only after 6 p.m. although some etiquette authorities allow for it anytime after dark even if that means prior to 6 p.m. The equivalent formal attire for daytime events is called morning dress. The less formal evening counterpart of white tie is black tie.

Formal evening dress is strictly regulated, and properly consists of:

White is a color, the perception of which is evoked by light that stimulates all three types of color sensitive cone cells in the human eye in nearly equal amounts and with high brightness compared to the surroundings. A white visual stimulation will be void of hue and grayness.

White light can be generated in many ways. The sun is such a source, electric incandescence is another. Modern light sources are fluorescent lamps and light-emitting diodes. An object whose surface reflects back most of the light it receives and does not alter its color will appear white, unless it has very high specular reflection.

Since white is the extreme end of the visual spectrum (in terms of both hue and shade), and since white objects - such as clouds, snow and flowers - appear often in nature, it has frequent symbolism. Human culture has many references to white, often related to purity and cleanness, whilst the high contrast between white and black is often used to represent opposite extremes.

The word white continues Old English hwīt, ultimately from a Common Germanic *χ^wītaz also reflected in OHG (h)wîz, ON hvítr, Goth. ƕeits. The root is ultimately from Proto-Indo-European language *k^wid-, surviving also in Sanskrit śveta "to be white or bright" and Slavonic světŭ "light". The Icelandic word for white, hvítur, is directly derived from the Old Norse form of the word hvítr. Common Germanic also had the word *blankaz ("white, bright, blinding"), borrowed into Late Latin as *blancus, which provided the source for Romance words for "white" (French blanc, Spanish blanco, Italian bianco, etc.). The root survives in English in the word black.

Tie may refer to:

TIE may refer to:

TiE may refer to