What color is #511388?

#511388 is a dark, vivid violet. In RGB it is rgb(81, 19, 136), and in HSL hsl(272, 75%, 30%).

Is #511388 accessible as text?

On white, #511388 has a contrast ratio of 11.68:1 (passes WCAG AA for body text); on black it is 1.80:1 (fails). For text placed on #511388, use white for the best readability.

What is the closest Tailwind color to #511388?

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

What colors go well with #511388?

#511388 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #498613. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #511388 below.

Is #511388 good for buttons?

#511388 works well for buttons and highlights, but use white text on #511388 — black text only reaches 1.80:1, below the 4.5:1 needed for normal-size labels.

Is #511388 the same as CSS indigo?

No — #511388 is not the CSS named color indigo, but indigo (#4B0082) is the closest CSS named color.

#511388 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #511388

Not just a swatch — here's how #511388 works with other colors. Named schemes with #511388 in its natural role, and a note on why the supporting colors balance it.

Luxury Packaging Feature · 5 colors

Feature #511388 Anchor #141210 Accent #DA9855 Secondary #2B2731 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 #511388 Anchor #2A2A2E Secondary #6E6E74 Surface #EEE5DA Accent #370043

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 #511388 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 #511388 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 #511388 Secondary #6B5C82 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 #511388 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 34/100

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 29/100

Low

A faint retro warmth without tipping into sepia.

Luxury 64/100

High

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

Brand distinctiveness 67/100

High

Bold and ownable — memorable as a primary brand color.

UI accent fit 59/100

Moderate

Workable accent with care around contrast.

Surface fit 16/100

Very low

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

Print safety 78/100

High

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #511388

For UI

For branding

For interior

For fashion

People also use #511388 with

Zaffre Mardi Gras Avocado 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 11.7:1. Use

Subtle surface Use #DDC8EF for cards and hover fills. Tint 80

Avoid beside #771386 — 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 #511388 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: #511388;
  --color-base-rgb: 81 19 136;
  --color-base-oklch: oklch(36.4% 0.174 301.6);
  --color-50: #F8F1FE;
  --color-100: #ECDAFB;
  --color-200: #D8B8F5;
  --color-300: #BB87E8;
  --color-400: #9D5BD7;
  --color-500: #7F38BC;
  --color-600: #643290;
  --color-700: #492966;
  --color-800: #321E42;
  --color-900: #1F1429;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  indigo: {
    50: '#F8F1FE',
    100: '#ECDAFB',
    200: '#D8B8F5',
    300: '#BB87E8',
    400: '#9D5BD7',
    500: '#7F38BC',
    600: '#643290',
    700: '#492966',
    800: '#321E42',
    900: '#1F1429',
  },
}

$base: #511388;
$base-ink: #FFFFFF;
$base-50: #F8F1FE;
$base-100: #ECDAFB;
$base-200: #D8B8F5;
$base-300: #BB87E8;
$base-400: #9D5BD7;
$base-500: #7F38BC;
$base-600: #643290;
$base-700: #492966;
$base-800: #321E42;
$base-900: #1F1429;
$base-hover: #400F6B;
$base-subtle: #CBABE8;

{
    "color": {
        "base": {
            "value": "#511388",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F8F1FE",
                "type": "color"
            },
            "100": {
                "value": "#ECDAFB",
                "type": "color"
            },
            "200": {
                "value": "#D8B8F5",
                "type": "color"
            },
            "300": {
                "value": "#BB87E8",
                "type": "color"
            },
            "400": {
                "value": "#9D5BD7",
                "type": "color"
            },
            "500": {
                "value": "#7F38BC",
                "type": "color"
            },
            "600": {
                "value": "#643290",
                "type": "color"
            },
            "700": {
                "value": "#492966",
                "type": "color"
            },
            "800": {
                "value": "#321E42",
                "type": "color"
            },
            "900": {
                "value": "#1F1429",
                "type": "color"
            }
        }
    }
}

Palettes built on #511388

Color Lab

Pairs with #511388

UI roles & guardrails

In real applications

Scales

Every model

Export