What color is #511D6E?

#511D6E is a dark violet. In RGB it is rgb(81, 29, 110), and in HSL hsl(279, 58%, 27%).

Is #511D6E accessible as text?

On white, #511D6E has a contrast ratio of 11.99:1 (passes WCAG AA for body text); on black it is 1.75:1 (fails). For text placed on #511D6E, use white for the best readability.

What is the closest Tailwind color to #511D6E?

The nearest Tailwind CSS token is purple-900 (#59168B).

What colors go well with #511D6E?

#511D6E pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #396D1D. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #511D6E below.

Is #511D6E good for buttons?

#511D6E works well for buttons and highlights, but use white text on #511D6E — black text only reaches 1.75:1, below the 4.5:1 needed for normal-size labels.

Is #511D6E the same as CSS indigo?

No — #511D6E is not the CSS named color indigo, but indigo (#4B0082) is the closest CSS named color.

#511D6E Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #511D6E

Not just a swatch — here's how #511D6E works with other colors. Named schemes with #511D6E in its natural role, and a note on why the supporting colors balance it.

Luxury Packaging Feature · 5 colors

Feature #511D6E Anchor #141210 Accent #D99954 Secondary #2C2630 Surface #F3EDE3

Indigo carries the depth in this luxury scheme, offset by a brass accent and near-black and held together by a deep neutral and an off-white surface.

Moody Editorial Color · 5 colors

Color #511D6E Anchor #2A2A2E Secondary #6E6E74 Surface #EEE5DA Accent #330533

Indigo adds the colour to this moody editorial scheme — charcoal and a mid-grey around it, a bone highlight, and a muted jewel accent drawn from Indigo.

Coastal Morning Lead · 5 colors

Lead #511D6E Accent #A5C4C4 Surface #E9D6BF Secondary #9AA0A1 Anchor #24334B

Indigo opens this coastal palette with sea-glass and warm sand alongside it, grounded by driftwood grey and a deep-navy anchor.

Berry & Cream Lead · 5 colors

Lead #511D6E Surface #F5E6D7 Anchor #5C213F Accent #E5C2C7 Secondary #332B2F

Indigo sits between cream and a deep berry here, softened by a blush accent and grounded by charcoal.

Minimal Editorial Surface · 5 colors

Surface #F8F4EF Accent #511D6E Secondary #6A5A75 Support #9C9088 Ink #18140F

Indigo is the single accent in this high-contrast editorial system — set on near-white paper against near-black ink, with a warm grey and a desaturated tint of Indigo carrying the quiet middle.

Build a working theme in the generator →

Color Lab

How #511D6E actually behaves in design work — read from its OKLCH lightness, chroma and hue, not just its raw numbers. Ten signals to help you decide where this color earns its place.

Warmth 43/100

Neutral

Balanced temperature — flexible, sits between warm and cool schemes.

Softness 28/100

Low

Firm and assertive — carries weight and contrast.

Depth 66/100

High

Deep and grounding — anchors a layout, strong dark-mode base.

Naturalness 0/100

Very low

Reads engineered rather than organic — synthetic, digital.

Vintage feel 40/100

Moderate

A faint retro warmth without tipping into sepia.

Luxury 68/100

High

Restrained and premium — deep, quiet, high-end packaging and fashion.

Brand distinctiveness 53/100

Moderate

Recognisable but shares space with nearby hues.

UI accent fit 58/100

Moderate

Workable accent with care around contrast.

Surface fit 21/100

Low

Too saturated or mid-toned for big areas — keep it to accents.

Print safety 84/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #511D6E

For UI

For branding

For interior

For fashion

People also use #511D6E with

Egyptian Blue Byzantium Dark Olive Green Gainsboro Onyx

UI roles & guardrails

Primary action Safe as a filled button with white label. AAA

Body text Passes on white at 16px and above. Pass

Large display Fine for headings 24px+ on white. Pass

Background Pair with white text at 12.0:1. Use

Subtle surface Use #DECAE9 for cards and hover fills. Tint 80

Avoid beside #6B1D6D — the hue gap is too small to read as intentional. Clash

In real applications

Not a swatch to memorise — a color to build with. Here is #511D6E at work across the surfaces designers actually ship.

Website / UI

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Dashboard

Revenue

$48.2k ▲ 12%

Brand

AVELINE

Studio

Poster

Nov 14 · 8PM

NIGHT
MARKET

Packaging

BLOOM

Botanical Wash

250 ml

Interior

Every model

Export

:root {
  --color-base: #511D6E;
  --color-base-rgb: 81 29 110;
  --color-base-oklch: oklch(35.2% 0.136 310.6);
  --color-50: #F9F2FC;
  --color-100: #EEDEF7;
  --color-200: #DDBFEE;
  --color-300: #C392DD;
  --color-400: #A769C9;
  --color-500: #8A47AD;
  --color-600: #6C3D85;
  --color-700: #4E305F;
  --color-800: #35233E;
  --color-900: #211726;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  indigo: {
    50: '#F9F2FC',
    100: '#EEDEF7',
    200: '#DDBFEE',
    300: '#C392DD',
    400: '#A769C9',
    500: '#8A47AD',
    600: '#6C3D85',
    700: '#4E305F',
    800: '#35233E',
    900: '#211726',
  },
}

$base: #511D6E;
$base-ink: #FFFFFF;
$base-50: #F9F2FC;
$base-100: #EEDEF7;
$base-200: #DDBFEE;
$base-300: #C392DD;
$base-400: #A769C9;
$base-500: #8A47AD;
$base-600: #6C3D85;
$base-700: #4E305F;
$base-800: #35233E;
$base-900: #211726;
$base-hover: #411757;
$base-subtle: #CFAFE0;

{
    "color": {
        "base": {
            "value": "#511D6E",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F9F2FC",
                "type": "color"
            },
            "100": {
                "value": "#EEDEF7",
                "type": "color"
            },
            "200": {
                "value": "#DDBFEE",
                "type": "color"
            },
            "300": {
                "value": "#C392DD",
                "type": "color"
            },
            "400": {
                "value": "#A769C9",
                "type": "color"
            },
            "500": {
                "value": "#8A47AD",
                "type": "color"
            },
            "600": {
                "value": "#6C3D85",
                "type": "color"
            },
            "700": {
                "value": "#4E305F",
                "type": "color"
            },
            "800": {
                "value": "#35233E",
                "type": "color"
            },
            "900": {
                "value": "#211726",
                "type": "color"
            }
        }
    }
}

Palettes built on #511D6E

Color Lab

Pairs with #511D6E

UI roles & guardrails

In real applications

Scales

Every model

Export