What color is #51137E?

#51137E is a dark, vivid violet. In RGB it is rgb(81, 19, 126), and in HSL hsl(275, 74%, 28%).

Is #51137E accessible as text?

On white, #51137E has a contrast ratio of 12.04:1 (passes WCAG AA for body text); on black it is 1.74:1 (fails). For text placed on #51137E, use white for the best readability.

What is the closest Tailwind color to #51137E?

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

What colors go well with #51137E?

#51137E pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #3F7C13. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #51137E below.

Is #51137E good for buttons?

#51137E works well for buttons and highlights, but use white text on #51137E — black text only reaches 1.74:1, below the 4.5:1 needed for normal-size labels.

Is #51137E the same as CSS indigo?

No — #51137E is not the CSS named color indigo, but indigo (#4B0082) is the closest CSS named color.

#51137E Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #51137E

Not just a swatch — here's how #51137E works with other colors. Named schemes with #51137E in its natural role, and a note on why the supporting colors balance it.

Luxury Packaging Feature · 5 colors

Feature #51137E Anchor #141210 Accent #D99855 Secondary #2B2631 Surface #F3ECE3

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 #51137E Anchor #2A2A2E Secondary #6E6E74 Surface #EEE5DA Accent #35003C

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 #51137E Accent #A5C4C4 Surface #E9D6BF Secondary #9AA0A1 Anchor #23334B

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 #51137E Surface #F5E6D7 Anchor #5C2140 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 #51137E Secondary #6A5A7C 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.

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Color Lab

How #51137E 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 38/100

Cool

Reads cool and recessive — calming, technical, good for trust-led UI.

Softness 26/100

Low

Firm and assertive — carries weight and contrast.

Depth 67/100

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 31/100

Low

A faint retro warmth without tipping into sepia.

Luxury 66/100

High

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

Brand distinctiveness 63/100

High

Bold and ownable — memorable as a primary brand color.

UI accent fit 58/100

Moderate

Workable accent with care around contrast.

Surface fit 17/100

Very low

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

Print safety 80/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #51137E

For UI

For branding

For interior

For fashion

People also use #51137E with

Zaffre Purple 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 #DEC7EE for cards and hover fills. Tint 80

Avoid beside #73137C — 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 #51137E 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: #51137E;
  --color-base-rgb: 81 19 126;
  --color-base-oklch: oklch(35.5% 0.164 305.2);
  --color-50: #F8F1FE;
  --color-100: #EDDBFB;
  --color-200: #DBB8F4;
  --color-300: #C088E7;
  --color-400: #A35CD6;
  --color-500: #8539BC;
  --color-600: #69338F;
  --color-700: #4C2A65;
  --color-800: #331F42;
  --color-900: #201529;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  indigo: {
    50: '#F8F1FE',
    100: '#EDDBFB',
    200: '#DBB8F4',
    300: '#C088E7',
    400: '#A35CD6',
    500: '#8539BC',
    600: '#69338F',
    700: '#4C2A65',
    800: '#331F42',
    900: '#201529',
  },
}

$base: #51137E;
$base-ink: #FFFFFF;
$base-50: #F8F1FE;
$base-100: #EDDBFB;
$base-200: #DBB8F4;
$base-300: #C088E7;
$base-400: #A35CD6;
$base-500: #8539BC;
$base-600: #69338F;
$base-700: #4C2A65;
$base-800: #331F42;
$base-900: #201529;
$base-hover: #400F63;
$base-subtle: #CDA9E7;

{
    "color": {
        "base": {
            "value": "#51137E",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F8F1FE",
                "type": "color"
            },
            "100": {
                "value": "#EDDBFB",
                "type": "color"
            },
            "200": {
                "value": "#DBB8F4",
                "type": "color"
            },
            "300": {
                "value": "#C088E7",
                "type": "color"
            },
            "400": {
                "value": "#A35CD6",
                "type": "color"
            },
            "500": {
                "value": "#8539BC",
                "type": "color"
            },
            "600": {
                "value": "#69338F",
                "type": "color"
            },
            "700": {
                "value": "#4C2A65",
                "type": "color"
            },
            "800": {
                "value": "#331F42",
                "type": "color"
            },
            "900": {
                "value": "#201529",
                "type": "color"
            }
        }
    }
}

Palettes built on #51137E

Color Lab

Pairs with #51137E

UI roles & guardrails

In real applications

Scales

Every model

Export