What color is #511665?

#511665 is a dark purple. In RGB it is rgb(81, 22, 101), and in HSL hsl(285, 64%, 24%).

Is #511665 accessible as text?

On white, #511665 has a contrast ratio of 12.71:1 (passes WCAG AA for body text); on black it is 1.65:1 (fails). For text placed on #511665, use white for the best readability.

What is the closest Tailwind color to #511665?

The nearest Tailwind CSS token is fuchsia-950 (#4B004F).

What colors go well with #511665?

#511665 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #2A6416. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #511665 below.

Is #511665 good for buttons?

#511665 works well for buttons and highlights, but use white text on #511665 — black text only reaches 1.65:1, below the 4.5:1 needed for normal-size labels.

Is #511665 the same as CSS indigo?

No — #511665 is not the CSS named color indigo, but indigo (#4B0082) is the closest CSS named color.

#511665 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #511665

Not just a swatch — here's how #511665 works with other colors. Named schemes with #511665 in its natural role, and a note on why the supporting colors balance it.

Luxury Packaging Feature · 5 colors

Feature #511665 Anchor #141210 Accent #D89954 Secondary #2D2630 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 #511665 Anchor #2A2A2E Secondary #6E6E74 Surface #EEE5DA Accent #31012B

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.

Berry & Cream Lead · 5 colors

Lead #511665 Surface #F5E6D7 Anchor #5D203E Accent #E5C2C6 Secondary #332B2F

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

Vintage Leather Lead · 5 colors

Lead #511665 Secondary #7E4630 Surface #ECD8C1 Accent #345249 Anchor #592235

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.

Minimal Editorial Surface · 5 colors

Surface #F8F4EF Accent #511665 Secondary #67556F Support #9C9087 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 #511665 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 47/100

Neutral

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

Softness 27/100

Low

Firm and assertive — carries weight and contrast.

Depth 68/100

High

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

Naturalness 1/100

Very low

Reads engineered rather than organic — synthetic, digital.

Vintage feel 40/100

Low

A faint retro warmth without tipping into sepia.

Luxury 70/100

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 52/100

Moderate

Workable accent with care around contrast.

Surface fit 22/100

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 #511665

For UI

For branding

For interior

For fashion

People also use #511665 with

Midnight Blue Tyrian Purple Dark Green Gainsboro Eggplant

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 12.7:1. Use

Subtle surface Use #E1C6EA for cards and hover fills. Tint 80

Avoid beside #64165E — 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 #511665 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: #511665;
  --color-base-rgb: 81 22 101;
  --color-base-oklch: oklch(33.7% 0.136 315.9);
  --color-50: #FAF2FD;
  --color-100: #F2DDF8;
  --color-200: #E3BCF0;
  --color-300: #CC8EE1;
  --color-400: #B364CE;
  --color-500: #9742B3;
  --color-600: #753989;
  --color-700: #542E61;
  --color-800: #382140;
  --color-900: #231627;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  indigo: {
    50: '#FAF2FD',
    100: '#F2DDF8',
    200: '#E3BCF0',
    300: '#CC8EE1',
    400: '#B364CE',
    500: '#9742B3',
    600: '#753989',
    700: '#542E61',
    800: '#382140',
    900: '#231627',
  },
}

$base: #511665;
$base-ink: #FFFFFF;
$base-50: #FAF2FD;
$base-100: #F2DDF8;
$base-200: #E3BCF0;
$base-300: #CC8EE1;
$base-400: #B364CE;
$base-500: #9742B3;
$base-600: #753989;
$base-700: #542E61;
$base-800: #382140;
$base-900: #231627;
$base-hover: #411250;
$base-subtle: #D3A9E1;

{
    "color": {
        "base": {
            "value": "#511665",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#FAF2FD",
                "type": "color"
            },
            "100": {
                "value": "#F2DDF8",
                "type": "color"
            },
            "200": {
                "value": "#E3BCF0",
                "type": "color"
            },
            "300": {
                "value": "#CC8EE1",
                "type": "color"
            },
            "400": {
                "value": "#B364CE",
                "type": "color"
            },
            "500": {
                "value": "#9742B3",
                "type": "color"
            },
            "600": {
                "value": "#753989",
                "type": "color"
            },
            "700": {
                "value": "#542E61",
                "type": "color"
            },
            "800": {
                "value": "#382140",
                "type": "color"
            },
            "900": {
                "value": "#231627",
                "type": "color"
            }
        }
    }
}