Indigo
Also known as: Indigo Static, Pigment Indigo, Invasive Indigo, Indigo Girls
With its cool undertone, Indigo (#4B0082) comes across as imaginative and refined. Designers reach for it 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).
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)
Color intelligence
Displays accurately on every screen and translates well to print.
Temperature
cool
Nearest standard colors
- 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, empty-state illustrations — not text.
- Branding: A secondary brand color by nature: it supports a stronger primary and shines in illustration.
Copy as — every ecosystem
Tints, shades, and tones of Indigo
Tints (lighter)
Shades (darker)
Color harmonies
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
Contrast & accessibility
Aa — on white
contrast 12.95:1
AA passAAA passAA large pass
Aa — on black
contrast 1.62:1
AA failAAA failAA large fail
Best text color on a Indigo background: #ffffff
Palettes featuring Indigo
Indigo with its complement
Soft neighbors of Indigo
Indigo triad
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.
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.
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