Amber (color)

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Amber
— Color coordinates —
Hex triplet		#FFBF00
RGB^a	(r, g, b)	(255, 191, 0)
HSV	(h, s, v)	(45°, 100%, 100%)
a: Normalized to [0–255] (byte)

Amber is an orange-yellow color that got its name for the material known as an amber. It is famous for being a color used in traffic lights. VT220 terminals were also available in amber.

[edit] Usage and symbolism

Amber is a symbolic colour of energy and is also a colour worn by Hull City AFC, an English football team.

[edit] Formal definition

UNECE Amber (desaturated approximation)
— Color coordinates —
Hex triplet		#FF7E00
RGB^a	(r, g, b)	(255, 126, 0)
HSV	(h, s, v)	(30°, 100%, 100%)
a: Normalized to [0–255] (byte)

In automotive lighting, UNECE Regulations state that direction-indicator lamps and standalone side-marker lamps and reflectors on vehicles must be amber. The color is defined in terms of the CIE 1931 color space as follows:

Limit towards green	$y \le x - 0.120$
Limit towards red	$y \ge 0.390$
Limit towards white	$y \ge 0.790 - 0.670 x$

The entirety of this definition lies outside the gamut of the sRGB color space — such a pure color cannot be represented using RGB primaries. The color swatch to the right is a desaturated approximation, created by taking the centroid of the standard definition and moving it towards the D65 white point, until it meets the sRGB gamut triangle.

[edit] References

					Shades of orange
Orange	Amber	Coral	Dark salmon	Gamboge	International orange	Mahogany	Peach	Peach-orange	Peach-yellow	Pink-orange	Pumpkin

Rust	Safety orange	Salmon	Tangerine	Tenné (Tawny)	UNECE Amber	Vermilion	Burnt Orange	Apricot	Carrot Orange	Orange Peel	Orange (web)

				Shades of yellow
Amber	Beige	Buff	Corn	Cream	Dark Goldenrod	Ecru	Flax	Gamboge	Golden

Goldenrod	Khaki	Lemon	Lemon Cream	Lime	Mustard	Navajo white	Old Gold	Olive	Papaya whip

Peach-yellow	Pear	Saffron	School bus yellow	Selective yellow	Tangerine yellow	Yellow	Apricot	Metallic Gold	Chartreuse yellow