Indigo
A deep blue-violet, historically produced from the indigo plant.
At a glance
- Hue family
- purple
- Warmth
- cool
- Tone depth
- deep
- Saturation
- Vivid
Similar to
Quick intelligence summary
- Feels like
- cool, deep, vivid
- Works well with
- See the pairings section below for calculated harmony options.
- Common uses
- See uses & contexts below for interiors, fashion and practical guidance.
- Accessibility snapshot
- Pairs better with white text (13.0:1) than black (1.6:1).
See this colour in the real world
Colours in photographs vary with lighting, material, camera processing and screen calibration — the named colours below are visual approximations, not exact measurements.
Indigo dye is one of the oldest known dyes, traded across multiple continents for millennia before synthetic indigo production began in the late 19th century.
Indigo-dyed fibre varies considerably by dye strength, number of dips and how the yarn has aged — this is one specific dyed sample, not a definitive indigo shade."Indigo Dyed Yarn" by Loggie-log, public domain, via Wikimedia CommonsLicence details
- Source:
- Wikimedia Commons
- Creator:
- Loggie-log
- Licence:
- Released into the public domain by the copyright holder, worldwide, with no conditions.
- Reviewed:
- 2026-07-25
Colour stories
How indigo became a globally traded colour
Indigo dye was independently developed and used by multiple cultures across Asia, Africa and the Americas for millennia before it became one of history's most significant traded commodities, carried along real trade routes between continents well before synthetic indigo production began in the late 19th century.
In practice: Indigo's genuinely global historical footprint is part of why blue-dyed cloth (from indigo-dyed textiles to modern denim) is recognisable across so many different cultural traditions.
Why indigo's colonial-era production history matters
As indigo became a major international trade commodity from the colonial era onward, its large-scale plantation production in several regions involved forced and exploitative labour — a documented historical fact worth stating plainly rather than skipping past on the way to a nicer story about a beautiful blue dye.
In practice: Understanding a historical dye's full production history — including the difficult parts — is part of taking colour history seriously, not just its aesthetic outcome.
Used in historical palettes
Indigo appears in the following curated historical/cultural palettes.
Indigo textile palette
Dyed cloth and traditional textiles
Antiquity to 19th century · Asia, Africa, and later the Americas and Europe
These HEX values are a modern digital approximation for comparison — they cannot exactly reproduce a historical physical pigment, dye or dyed cloth, whose appearance also varied by batch, ageing and the light it was viewed in.
Victorian synthetic dye palette
Fashionable dress following the invention of synthetic dyes
1856 to late 19th century · Europe
These HEX values are a modern digital approximation for comparison — they cannot exactly reproduce a historical physical pigment, dye or dyed cloth, whose appearance also varied by batch, ageing and the light it was viewed in.
Pairings
Subtle, bold, analogous, complementary and neutral options — established design convention, not a guarantee of visual success in every context.
Complementary
Opposite hues (180° apart) for maximum hue contrast.
Analogous
Neighbouring hues on the colour wheel for a low-contrast, harmonious feel.
Analogous
Neighbouring hues on the colour wheel for a low-contrast, harmonious feel.
Triadic
Three hues evenly spaced around the colour wheel for balanced contrast.
Triadic
Three hues evenly spaced around the colour wheel for balanced contrast.
Split-complementary
The two hues bracketing the complement, for contrast with less tension.
Split-complementary
The two hues bracketing the complement, for contrast with less tension.
Tetradic
Four hues at 90° steps around the colour wheel for a rich, varied palette.
Tetradic
Four hues at 90° steps around the colour wheel for a rich, varied palette.
Tetradic
Four hues at 90° steps around the colour wheel for a rich, varied palette.
Monochromatic
Same hue at different lightness levels, for a cohesive tonal palette.
Monochromatic
Same hue at different lightness levels, for a cohesive tonal palette.
Monochromatic
Same hue at different lightness levels, for a cohesive tonal palette.
Monochromatic
Same hue at different lightness levels, for a cohesive tonal palette.
For an accessible, low-contrast-risk pairing, monochromatic (same-hue) combinations are usually the safest starting point — see the harmonies above.
Uses & contexts
Continue exploring
Related questionNight skyDeep, low-saturation blues and near-blacks reflect the very low light levels of a clear night, with a single bright accent for starlight.Nature paletteGo deeperSynthetic dyes and the democratisation of colourThe accidental 1856 discovery of mauveine by chemist William Perkin triggered a rapid industrial shift from scarce, expensive natural dyes and pigments to affordable synthetic colour, fundamentally changing fashion, interiors and printing within a few decades.HistoryGo deeperIndigo textile paletteDyed cloth and traditional textilesHistorical palette
Meaning & story
History
- One of the oldest known dyes, historically produced from the indigo plant and used to colour denim.
True of the blue family generally
Inherited from the blue hue family, not specifically documented about this exact shade — see methodology.
- Purple dye — notably Tyrian purple, extracted from sea snails — was historically extremely costly to produce, which associated the colour with royalty, wealth and status across several ancient and medieval cultures.
Pigment & family history
Terminology
Lighter, darker & directional variants
Calculated directional adjustments. Some directions converge on the same result from this starting colour — shown as one merged card with an explanation, not repeated duplicates. Generated shades link to a curated profile only when one is close enough.
Lighter
Lightness increased
Darker
Lightness decreased
Warmer & Redder & Yellower
Hue rotated toward warm (red/orange) From this starting colour, moving warmer and redder and yellower converges on the same calculated result.
Cooler & Greener & Bluer
Hue rotated toward cool (blue) From this starting colour, moving cooler and greener and bluer converges on the same calculated result.
More muted
Saturation softened
More saturated
Saturation increased This is close to the source colour itself — there is limited room left to move more saturated from here.
In nature
Technical details
Technical values
CMYK is an approximate device conversion, not a calibrated print value — see methodology.
Convert this colour to another format →
CSS/web-standard named colour value.
Characteristics
- Hue family
- purple
- Undertone
- cool
- Tone depth
- deep
- Pastel
- No
- Earth tone
- No
- Jewel tone
- Yes
- Vivid
- Yes
- Greyness
- 0%
- Visual weight
- 85/100
Accessibility
vs. white text
12.95:1 — AAA
vs. black text
1.62:1 — fails
Confidence: medium · Qualification: identity_only, technically_qualified, curated_profile_eligible, search_index_eligible, comparison_eligible
Spotted something wrong? Suggest a correction.