Jetstar Airways Pty Ltd, trading as Jetstar, is an Australian low-cost airline (self-described as "value based") headquartered in Melbourne, Australia. It is a wholly owned subsidiary of Qantas, created in response to the threat posed by low-cost airline Virgin Blue. Jetstar is part of Qantas' two brand strategy of having Qantas Airways for the premium full-service market and Jetstar for the low-cost market. Jetstar carries 8.5% of all passengers travelling in and out of Australia.
The airline was established by Qantas in 2003 as a low-cost domestic subsidiary. Qantas had previously acquired Impulse Airlines on 20 November 2001 and operated it under the QantasLink brand, but following the decision to launch a low-cost carrier, re-launched the airline under the Jetstar brand. Domestic passenger services began on 25 May 2004, soon after the sale of tickets for her inaugural flight in February 2004. International services to Christchurch, New Zealand, commenced on 1 December 2005. Although owned by Qantas, its management operates largely independent of Qantas through the company formerly known as Impulse Airlines.
Shades of black are colors that differ only slightly from pure black. These colors have a low lightness. From photometric point of view, a color which differs slightly from black always has low relative luminance. Variations of black include what are commonly termed off-black colors, which may be considered part of a neutral color scheme, usually in interior design as a part of a background for brighter colors. Black and dark gray colors are powerful accent colors that suggest weight, dignity, formality, and solemnity.
In color theory, a shade is a pure color mixed with black. It decreases its lightness while nearly conserving its chromaticity. Strictly speaking, a “shade of black” is always a pure black itself and a “tint of black” would be a neutral gray. Unlike these, many off-black colors possess a hue and a colorfulness (also called saturation).
Colors often considered "shades of black" include onyx, black olive, charcoal, and jet; these colors and other variations of black are shown below.