Indigo
Also known as: Indigo Static , Pigment Indigo , Invasive Indigo , Indigo Girls
Indigo is a rich, vivid purple that reads as imaginative and refined. It earns its place in premium packaging and fantasy themes. A green counterpart from the complementary harmony gives it the most tension. It's dark enough to use for text on white backgrounds (12.95:1, passes WCAG AA).
Reference
Indigo color codes
- HEX
- #4B0082
- RGB
- rgb(75, 0, 130)
- RGBA
- rgba(75, 0, 130, 1)
- HSL
- hsl(275, 100%, 25%)
- HSV
- hsv(275, 100%, 51%)
- CMYK
- cmyk(42%, 100%, 0%, 49%)
- LAB
- lab(19.7 47.0 -54.3)
- OKLCH
- oklch(33.9% 0.179 301.7)
Analysis
Color intelligence
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Gamut
The full range of colors a device or space can show. sRGB is the common screen gamut; Display P3 is wider. A color outside a gamut cannot be shown accurately there and must be mapped inward.Full glossary entry →Displays accurately on every screen and translates well to print.
Temperature
Undertone
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cool
Nearest standard colors
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Delta E (ΔE)
A measure of how different two colors look. Below 1 the difference is invisible to almost everyone; below 2.3 most people can't tell them apart; above 10 they are clearly different colors. We use CIEDE2000, the modern standard.Full glossary entry →
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Delta E (ΔE)
A measure of how different two colors look. Below 1 the difference is invisible to almost everyone; below 2.3 most people can't tell them apart; above 10 they are clearly different colors. We use CIEDE2000, the modern standard.Full glossary entry →- CSS: indigo #4B0082 · ΔE 0.0
- RAL 5002: Ultramarine blue #2B2C7C · ΔE 10.5 · approximate
RAL values are widely published approximations of the physical standard. For Pantone-adjacent workflows, match by eye against a physical fan deck. Pantone's values are proprietary and device-dependent, so we don't print lookups.
Where Indigo works
- Web & UI: Dark enough for body text and icons on white backgrounds. It passes WCAG AA as-is.
- Interiors: Strong for a whole room, excellent in doses: an accent wall, cabinetry, or a statement chair.
- Fashion: Wears best as the statement piece, a top, scarf, or shoes, against neutral basics.
- Branding: Premium territory: beauty, creative tools, and boutique brands lean on this range.
- Web & UI: A supporting-cast color for UI: chart fills, tags, and empty-state illustrations, but not text.
- Branding: A secondary brand color by nature: it supports a stronger primary and shines in illustration.
Copy as: every ecosystem
Variations
Tints, shades, and tones of Indigo
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Tint
A color mixed with white, which raises its lightness. Pink is a tint of red. Tints feel softer and more open than the base color.Full glossary entry →
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Tint
A color mixed with white, which raises its lightness. Pink is a tint of red. Tints feel softer and more open than the base color.Full glossary entry →Tints (lighter)
Shades (darker)
Harmonies
Color harmonies
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Complementary colors
Two colors opposite each other on the wheel. They create the strongest contrast and make each other look more intense, so they work best used unevenly.Full glossary entry →
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Complementary colors
Two colors opposite each other on the wheel. They create the strongest contrast and make each other look more intense, so they work best used unevenly.Full glossary entry →Palettes built from Indigo by rotating its hue in OKLCH space. Click any swatch to copy its hex code.
Complementary
Analogous
Triadic
Split-complementary
Tetradic
Monochromatic
Accessibility
Contrast & accessibility
Aa on white
contrast 12.95:1
AA pass AAA pass AA large pass
Aa on black
contrast 1.62:1
AA fail AAA fail AA large fail
Best text color on a Indigo background: #ffffff
Palettes
Palettes featuring Indigo
Indigo with its complement
Soft neighbors of Indigo
Indigo triad
Explore
Similar colors
- Occult #4B1E87 · ΔE 3.9
- Indiglow #301885 · ΔE 5.4
- Extraviolet #661188 · ΔE 5.4
- Blackmail #220066 · ΔE 7.1
- Voldemort #2D135F · ΔE 7.6
- Royal #0C1793 · ΔE 8.2
Looking for maximum contrast instead? The complement of Indigo is closest to Dark Olive .
FAQ
Indigo FAQs
What color is Indigo?
Indigo is a dark purple with the hex code #4B0082. In HSL terms it has a hue of 275°, 100% saturation, and 25% lightness.
What is the hex code for Indigo?
The hex code for Indigo is #4B0082. In RGB it's rgb(75, 0, 130), and in CMYK it's cmyk(42%, 100%, 0%, 49%).
What colors go well with Indigo?
Indigo pairs naturally with green tones from its complementary harmony, and with brown accents from its split-complementary palette. Its own tints and shades always work as a monochrome scheme.
Planning around this color? See everything that goes with Indigo : 10 computed pairings with palettes.
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