What is the hex code for indigo?

Indigo is #4B0082. In RGB that is 75, 0, 130, and in HSL it is 275 degrees, 100 percent saturation, 25 percent lightness.

What is the CMYK value of indigo?

#4B0082 converts to CMYK 42, 100, 0, 49. CMYK is a print space, so a screen can only ever approximate how it will actually be inked.

Can I use indigo as a CSS color name?

Yes. indigo is a CSS color keyword, so you can write it as a name instead of a hex code and every modern browser will render exactly #4B0082.

Indigo

#4B0082

Indigo is the hex color #4B0082, with RGB values 75, 0, 130. It is a CSS color keyword, so browsers render it from the name alone, and its value is fixed by the CSS Color Module.

BlueCSS keyword

Quick colors, then fill the screen

Or a gradient

Or let it move

#4B0082rgb(75, 0, 130) · hsl(275, 100%, 25%)

Hue275°

Brightness100%

Indigo color codes

Every value for #4B0082, ready to paste. Click any code to copy it.

Channel values for #4B0082 in each number base
Channel	Decimal	Share	Hex	Octal	Binary
Red	75	29.41%	4B	113	01001011
Green	0	0%	00	0	00000000
Blue	130	50.98%	82	202	10000010

The nearest web-safe color is #330099, from the 216-color palette browsers agreed on before displays could be trusted with more.

About indigo

The CSS keyword sits much further toward purple than the dye does. Newton included it in the spectrum to make seven colors, a decision that has been argued about ever since.

Shades, tints and tones

Every step is generated from #4B0082. Click a swatch to copy its hex.

Shades of indigo

A shade is the base color with black mixed in. Shades read as deeper and more dramatic, and they are what you reach for when a color needs to recede or carry weight.

Tints of indigo

A tint is the base color with white mixed in. Tints turn pastel as they lighten, which makes them useful for backgrounds and for anything that has to sit behind text.

Tones of indigo

A tone is the base color with grey mixed in. Tones lose the shout without losing the hue, and they are usually what separates a considered palette from a loud one.

The indigo scale

The same color as the 50 to 950 ladder every CSS framework uses, with #4B0082 at 500. Click a step to copy its hex, or take the whole scale as variables for a design system.

Color schemes built on indigo

Harmonies are positions on the color wheel rather than matters of taste, which is why they keep working across very different designs.

Complementary

Two colors from opposite sides of the wheel. They make each other look more vivid, which is why the pairing is used for anything that needs to stand out.

Analogous

Three neighbours on the wheel. Nothing competes, so the result reads calm and settled, closer to how colour behaves in nature.

Split complementary

The base plus the two colors either side of its complement. It keeps most of the contrast while being much easier to balance.

Triadic

Three colors spaced evenly around the wheel. Strong and lively, and usually best with one dominant color and two accents.

Tetradic

Two complementary pairs, forming a rectangle on the wheel. The richest scheme available, and the hardest to keep from shouting.

Monochromatic

One hue at different lightness levels. Effortlessly cohesive, and the safest way to build a palette around a brand color.

Colors close to #4B0082

Near neighbours, for when this color is almost right. Each one shifts hue, saturation or lightness by a small step.

Indigo color palettes

Five-color palettes built around #4B0082, each following a different scheme. Click any swatch to copy it, or open the generator to build your own.

Analogous

Complementary

Triadic

Monochromatic

Open the palette generator to lock the colors you like and regenerate the rest.

Contrast and readability

Whether indigo works as text, and what to put on top of it when it is the background. Ratios follow WCAG 2.1, where 4.5 is the bar for body text and 3 for large text.

Indigo text on white background

12.95:1 · Excellent

Large text at 24 pixels

Body text at 16 pixels. A flat field of color removes every variable, which is what makes it useful for judging a display.

Body AA
Body AAA
Large AA
Large AAA

Indigo text on black background

1.62:1 · Poor

Large text at 24 pixels

Body text at 16 pixels. A flat field of color removes every variable, which is what makes it useful for judging a display.

Body AA
Body AAA
Large AA
Large AAA

Used the other way round, #4B0082 as a background takes #FFFFFF text. That is the higher-contrast of the two, and it is what the tool picks automatically for any chrome sitting on your color.

Indigo reads better on a white background of the two. Contrast is a property of the pair, not of one color, so a color that fails here can still be perfectly usable against a different partner.

The blue family

Indigo sits in the blue family. Every named blue in the library, with indigo first.

Name	Hex	RGB	HSL
Indigo is a CSS keyword is the color on this page	#4B0082	75, 0, 130	275, 100%, 25%
Blue is a CSS keyword	#0000FF	0, 0, 255	240, 100%, 50%
Navy is a CSS keyword	#000080	0, 0, 128	240, 100%, 25%
Royal blue is a CSS keyword	#4169E1	65, 105, 225	225, 73%, 57%
Sky blue is a CSS keyword	#87CEEB	135, 206, 235	197, 71%, 73%
Baby blue	#89CFF0	137, 207, 240	199, 77%, 74%
Cobalt	#0047AB	0, 71, 171	215, 100%, 34%
Periwinkle	#CCCCFF	204, 204, 255	240, 100%, 90%
Powder blue is a CSS keyword	#B0E0E6	176, 224, 230	187, 52%, 80%
Steel blue is a CSS keyword	#4682B4	70, 130, 180	207, 44%, 49%
Midnight blue is a CSS keyword	#191970	25, 25, 112	240, 64%, 27%
Denim	#1560BD	21, 96, 189	213, 80%, 41%
Cerulean	#2A52BE	42, 82, 190	224, 64%, 45%
Dodger blue is a CSS keyword	#1E90FF	30, 144, 255	210, 100%, 56%
Prussian blue	#003153	0, 49, 83	205, 100%, 16%