What color is #511E90?

#511E90 is a dark violet. In RGB it is rgb(81, 30, 144), and in HSL hsl(267, 66%, 34%).

Is #511E90 accessible as text?

On white, #511E90 has a contrast ratio of 10.83:1 (passes WCAG AA for body text); on black it is 1.94:1 (fails). For text placed on #511E90, use white for the best readability.

What is the closest Tailwind color to #511E90?

The nearest Tailwind CSS token is violet-900 (#4D179A).

What colors go well with #511E90?

#511E90 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #5C901D. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #511E90 below.

Is #511E90 good for buttons?

#511E90 works well for buttons and highlights, but use white text on #511E90 — black text only reaches 1.94:1, below the 4.5:1 needed for normal-size labels.

Is #511E90 the same as CSS indigo?

No — #511E90 is not the CSS named color indigo, but indigo (#4B0082) is the closest CSS named color.

#511E90 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #511E90

Not just a swatch — here's how #511E90 works with other colors. Named schemes with #511E90 in its natural role, and a note on why the supporting colors balance it.

Berry & Cream Lead · 5 colors

Lead #511E90 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.

Coastal Morning Lead · 5 colors

Lead #511E90 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.

Vintage Leather Lead · 5 colors

Lead #511E90 Secondary #7E4632 Surface #EDD8C2 Accent #355248 Anchor #582237

Indigo plays the worn-leather lead, deepened by saddle brown and an oxblood anchor, softened by aged cream and cooled by a muted forest green.

Modern Café Dominant · 5 colors

Dominant #511E90 Anchor #3B2923 Surface #F3E1D1 Accent #739F7D Secondary #3C3734

Indigo anchors this café scheme as the warm mid-tone, lifted by latte cream and a muted sage accent and grounded by espresso brown and a warm charcoal.

Minimal Editorial Surface · 5 colors

Surface #F8F4EF Accent #511E90 Secondary #6D6288 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 #511E90 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 31/100

Cool

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

Softness 27/100

Low

Firm and assertive — carries weight and contrast.

Depth 65/100

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 30/100

Low

A faint retro warmth without tipping into sepia.

Luxury 63/100

High

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

Brand distinctiveness 47/100

Moderate

Recognisable but shares space with nearby hues.

UI accent fit 66/100

High

Strong interactive accent — visible and can carry a legible label.

Surface fit 15/100

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 #511E90

For UI

For branding

For interior

For fashion

People also use #511E90 with

Egyptian Blue Dark Magenta Olive Drab 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 10.8:1. Use

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

Avoid beside #771D90 — 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 #511E90 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: #511E90;
  --color-base-rgb: 81 30 144;
  --color-base-oklch: oklch(38.2% 0.172 297.8);
  --color-50: #F7F2FD;
  --color-100: #E9DCF9;
  --color-200: #D4BBF1;
  --color-300: #B38DE2;
  --color-400: #9462D0;
  --color-500: #7540B5;
  --color-600: #5D388A;
  --color-700: #452D62;
  --color-800: #2F2140;
  --color-900: #1E1628;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  indigo: {
    50: '#F7F2FD',
    100: '#E9DCF9',
    200: '#D4BBF1',
    300: '#B38DE2',
    400: '#9462D0',
    500: '#7540B5',
    600: '#5D388A',
    700: '#452D62',
    800: '#2F2140',
    900: '#1E1628',
  },
}

$base: #511E90;
$base-ink: #FFFFFF;
$base-50: #F7F2FD;
$base-100: #E9DCF9;
$base-200: #D4BBF1;
$base-300: #B38DE2;
$base-400: #9462D0;
$base-500: #7540B5;
$base-600: #5D388A;
$base-700: #452D62;
$base-800: #2F2140;
$base-900: #1E1628;
$base-hover: #411873;
$base-subtle: #CAB3E6;

{
    "color": {
        "base": {
            "value": "#511E90",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F7F2FD",
                "type": "color"
            },
            "100": {
                "value": "#E9DCF9",
                "type": "color"
            },
            "200": {
                "value": "#D4BBF1",
                "type": "color"
            },
            "300": {
                "value": "#B38DE2",
                "type": "color"
            },
            "400": {
                "value": "#9462D0",
                "type": "color"
            },
            "500": {
                "value": "#7540B5",
                "type": "color"
            },
            "600": {
                "value": "#5D388A",
                "type": "color"
            },
            "700": {
                "value": "#452D62",
                "type": "color"
            },
            "800": {
                "value": "#2F2140",
                "type": "color"
            },
            "900": {
                "value": "#1E1628",
                "type": "color"
            }
        }
    }
}

Palettes built on #511E90

Color Lab

Pairs with #511E90

UI roles & guardrails

In real applications

Scales

Every model

Export