Indigo

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This box shows the color indigo.
 
Indigo dye from India

Indigo is a hue lying between blue and violet. The brightest tone of indigo is the sixth color of the rainbow. The color shown at right, electric indigo, is the closest color it is possible to display on a computer to the color of the indigo color band in the rainbow.

Isaac Newton named and defined indigo as a spectrum color when he divided up the spectrum into the seven colors of the rainbow. The spectral range of indigo is between 450 and 420 nanometers.

The name of the color indigo originally came from the indigo plant. Indigo is a dye made from the indigo plant, used to dye cloth. Indigo dye also is used to dye denim cloth, which is used to make what are called blue jeans (they should really be called indigo jeans). This shade of indigo, called indigo dye (shown at left above in the picture and in the color chart below), is darker than the spectrum indigo shown above.

The indigo plant originally came from the nation of India. The Ancient Greek language word for the dye is indikon. The Romans used the term indicum, which passed into Italian dialect and eventually into English as the word indigo.

These things are colored indigo:


Meaning of indigo[change | edit source]

  • In the Hindu religion, indigo represents the 6th chakra.
  • Indigo was also the name of a character from the famous toy line, Rainbow Brite.


Comparison of blue, indigo, and violet[change | edit source]

Note: The spectrum colors can only be approximated on a computer screen but the colors shown below are a close approximation of the spectrum colors blue, indigo, and violet.

BLUE (Hex: #0000FF) (RGB: 0, 0, 255)
INDIGO (Electric Indigo) (Hex: #6F00FF) (RGB: 111, 0, 255)
VIOLET (Electric Violet) (Hex: #8F00FF) (RGB: 143, 0, 255)

Tones of indigo color comparison chart[change | edit source]

Light Lavender Mist (Xona.com Color List "Lavender Light ") (Hex: #F5F5FD) (RGB: 245, 245, 253)
Lavender Mist (web color Lavender) (Hex: #E6E6FA) (RGB: 230, 230, 250)
Light Melrose (Melrose Light (Xona.com color list)) (Hex: #E7E4EF) (RGB: 231, 228, 255)
Light Logan (Logan Light (Xona.com color list)) (Hex: #D9D8EA) (RGB: 217, 216, 234)
Light Periwinkle (Periwinkle (Crayola)) (Hex: #C5D0E6) (RGB: 197, 208, 230)
Periwinkle (Lavender Blue) (PerBang.dk) (Maerz and Paul) (Hex: #CCCCFF) (RGB: 204, 204, 255)
Melrose (Xona.com color list) (Hex: #C7C1FF) (RGB: 199, 193, 255)
Light Chetwode Blue (Chetwode Blue Light (Xona.com color list)) (Hex: #C5C2EF) (RGB: 197, 194, 239)
Light Moody Blue (Moody Blue Light (Xona.com color list)) (Hex: #C1BBEC) (RGB: 193, 187, 236)
Light Steel Blue (web color) (Hex: #B0C4DE) (RGB: 176, 196, 222)
Panama Blue (Plochere) (Hex: #B3BCE2) (RGB: 179, 188, 226)
Logan (Xona.com color list) (Hex: #AAA9CD) (RGB: 170, 169, 205)
Rich Periwinkle (Hex: #9999FF) (RGB: 153, 153, 255)
Deep Periwinkle (Hex: #8080FF) (RGB: 128, 128, 255)
Chetwode Blue (Xona.com color list) (Hex: #8581D9) (RGB: 133, 129, 217)
Moody Blue (Xona.com color list) (Hex: #7F76D3) (RGB: 127, 118, 211)
Toolbox (Crayola colored pencils) (Hex: #746CC0) (RGB: 116, 108, 192)
Medium Periwinkle (Deep Periwinkle (Pantone TPX 17-3932)) (Hex: #7A83BF) (RGB: 122, 131, 191)
Light Blue-Violet (Blue-Violet Light (Xona.com Color List)) (Hex: #C77DF3) (RGB: 199, 125, 243)
Medium Slate Blue (web color) (Hex: #7B68EE) (RGB: 123, 104, 238)
Slate Blue (web color) (Hex: #6A5ACD) (RGB: 106, 90, 205)
Majorelle Blue (Hex: #6050DC) (RGB: 96, 80, 220)
Light Indigo (Indigo Light (Xona.com Color List)) (Hex: #4081A4) (RGB: 64, 129, 164)
Steel Blue (web color) (Hex: #4682B4) (RGB: 70, 130, 180)
Bright Indigo (Indigo (Crayola)) (Hex: #5D76CB) (RGB: 93, 118, 203)
Medium Indigo (Indigo aclarado (Gallego & Sanz)) (Hex: #3B708D) (RGB: 59, 112, 141)
Light Gulf Blue (Gulf Blue Light (Xona.com Color List)) (Hex: #3560A6) (RGB: 53, 96, 166)
Denim (Crayola) (Hex: #1560BD) (RGB: 21, 96, 189)
Han Blue (PerBang.dk) (Hex: #5218FA) (RGB: 82, 24, 250)
Electric Ultramarine (Ultramarine (Maerz and Paul)) (Hex: #3F00FF) (RGB: 63, 0, 255)
Westminster (Maerz and Paul) (Hex: #5F00FF) (RGB: 95, 0, 255)
Lobelia (Near Indigo) (Maerz and Paul) (Hex: #6700FF) (RGB: 103, 0, 255)
INDIGO (Electric Indigo) (Middle Indigo) (Hex: #6F00FF) (RGB: 111, 0, 255)
Pansy (Extreme Indigo) (Maerz and Paul) (Hex: #7700FF) (RGB: 119, 0, 255)
French Indigo (Indigo (pourpre.com)) (Vivid Indigo) (Hex: #791CF8) (RGB: 121, 28, 248)
Lavender Indigo (www.99colors.net) (Hex: #9457EB) (RGB: 148, 87, 235)
Deep Indigo (Blue-Violet (web color)) (Hex: #8A2BE2) (RGB: 138, 43, 226)
Royal Purple (Crayola) (Hex: #6B3FA0) (RGB: 107, 63,160)
Vintage Indigo (Pantone TPX 19-3929) (Hex: #664D64) (RGB: 102, 77, 100)
Indigo (Pantone) (Pantone TPX 19-3215) (Hex: #503E5C) (RGB: 80, 62, 92)
Dotcom (Resene color list) (Hex: #41415D) (RGB: 65, 65, 93)
Pigment Indigo (Indigo (web color)) (Hex: #4B0082) (RGB: 75, 0, 130)
Dark Slate Blue (web color) (Hex: #483D8B) (RGB: 72, 61, 139)
Persian Indigo (Regimental) (Maerz and Paul) (Hex: #32127A) (RGB: 50, 18, 122)
Pictorial Indigo (Indigo pictorico (Gallego & Sanz)) (Hex: #213C6E) (RGB: 33, 60, 110)
Blue Indigo (Pantone TPX 19-3928) (Hex: #485470) (RGB: 72, 84, 112)
Dark Imperial Blue (Imperial Blue (ISCC-NBS)) (Hex: #00416A) (RGB: 0, 65, 106)
Indigo Dye (Anil (Gallego & Samz)) (Hex: #091F92) (RGB: 9, 31, 146)
Spanish Indigo (Indigo Especifico (Gallego & Samz)) (Hex: #003C92) (RGB: 0, 60, 148)
Imperial Blue (Vexillological) (Maerz and Paul) (Hex: #002395) (RGB: 0, 35, 149)
Ultramarine (Pigment) (www.99colors.net) (Hex: #120A8F) (RGB: 18, 10, 143)
Midnight Blue (web color) (Hex: #191970) (RGB: 25, 25, 112)
Dark Midnight Blue (Midnight Blue (Crayola)) (Hex: #003366) (RGB: 0, 51, 102)
Prussian Blue (Berlin Blue) (www.99colors.net) (Hex: #003153) (RGB: 0, 49, 83)
Dark Indigo (www.99colors.net) (Hex: #310062) (RGB: 49, 0, 98)
Gulf Blue (Xona.com color list) (Hex: #051657) (RGB: 9, 22, 87)
Japanese Indigo (Japanese traditional colors) (Hex: #264348) (RGB: 38, 67, 72)


References[change | edit source]

  1. Graham, Lanier F. (editor) The Rainbow Book Berkeley, California: 1976 Shambala Publishing and The Fine Arts Museums of San Francisco (Handbook for the Summer 1976 exhibition The Rainbow Art Show which took place primarily at the De Young Museum but also at other museums) Indigo Pages 152–153 The color indigo is stated to represent intuition.

Other pages[change | edit source]