Indigo

Indigo
	Piece o indigo plant dye frae Indie,; aboot 2.5 inches (6 cm) square.
Wavelenth	450–420(disputit) nm
Common connotations
	lyalty, releegion, spirituality, intuition
Colour coordinates
Hex triplet	#4B0082
sRGBB (r, g, b)	(75, 0, 130)
CMYKH (c, m, y, k)	(42, 100, 0, 49)
HSV (h, s, v)	(275°, 100%, 51%)
Soirce	HTML/CSS
	B: Normalised tae [0–255] (byte); H: Normalised tae [0–100] (hunder)

Indigo is a colour that is tradeetionally regardit as a colour on the veesible spectrum, as well as ane o the seiven colours o the rainbow: the colour atween blue an violet. Altho tradeetionally considered ane o seiven major spectral colors, its actual poseetion in the electromagnetic spectrum is controversial. Indigo is a deep an bricht colour close tae the colour wheel blue (a primary colour in the RGB color space), as well as tae some variants o ultramarine.

The colour indigo wis named efter the indigo dye derived frae the plant Indigofera tinctoria an relatit species.

The first recordit uise o indigo as a colour name in Inglis wis in 1289.^[3]

References

↑ Encyclopedia of Physics—Google Book Result:
↑ W3C TR CSS3 Color Module, SVG color keywords. W3C. (May 2003). Retrieved on 14 December 2007.
↑ Maerz and Paul A Dictionary of Color New York:1930 McGraw-Hill Page 197; Color Sample of Indigo: Page 117 Plate 47 Color Sample E10