Abir (or abeer) is a dye common in India. It is used during the Holi festival, which is also called the festival of color, when people throw this colourful powder at each other. Abir is typically sold in markets prior to the festival. Abir"

The Alexa family of fluorescent dyes is produced by Molecular Probes, a subsidiary of Invitrogen. Alexas are typically used as cytoplasmic labels in cell biology. Alexa (fluor)"

The name alkanet generally refers to Alkanna tinctoria or Dyer's Bugloss (though it may be used for Anchusa officinalis or Common Bugloss). Alkanet"

Aniline, phenylamine or aminobenzene ( C6 H5 N H2) is an organic chemical compound which is a primary aromatic amine consisting of a benzene ring and an amino group. The chemical structure of aniline is shown at the right. Aniline"

Archil is a purple dye obtained from lichens.(är´kĬl, -chĬl) or orchil , blue, red, or purple dye extracted from several species of lichen , also called orchella weeds, found in various parts of the world. Commercial archil is either a powder (called cudbear). Cudbear's named comes from George who applied for the patent in 1758, after he noticed that an orchil dye was being used, that was similar to his native clothes in the Highlands. His brother Cuthbert happened to be a dye merchant in the city of Leith. Archil"

Bluing, laundry blue, or washing blue is a household product used to improve the appearance of fabrics, especially white fabrics. Used during laundering, it adds a trace of blue dye (often synthetic ultramarine, sometimes Prussian blue) to the fabric. Bluing (fabric)"

Brazilwood is a common name for wood which yields a red dye called brazilin, which oxidizes to brazilein. The name is said to come from "brasa", Portuguese for "ember," owing to its red hue. Botanically, several trees of the family Leguminosae, the ( Pulse family) are involved. Brazilwood"

Brooms are a group of evergreen, semi-evergreen, and deciduous shrubs in the subfamily Faboideae of the legume family Fabaceae, mainly in the two genera Cytisus and Genista, but also in five other small genera (see box, right). All genera in this group are from the tribe Cytiseae. These genera are all closely related and share similar characters of dense, slender green stems and very small leaves, adaptations to dry growing conditions. Most of the species have yellow flowers, but a few have white, orange, red, pink or purple flowers. Two other close relatives are Ulex (Gorse) and Laburnum (Laburnum), but these differ more strongly in appearance from the brooms. Some botanists include Podocytisus caramanica in the genus Laburnum. Broom (shrub)"

A carbene dye is a reactive dye based on carbene chemistry. Carbene dye"