What color is #400A51?

#400A51 is a dark, vivid purple. In RGB it is rgb(64, 10, 81), and in HSL hsl(286, 78%, 18%).

Is #400A51 accessible as text?

On white, #400A51 has a contrast ratio of 15.21:1 (passes WCAG AA for body text); on black it is 1.38:1 (fails). For text placed on #400A51, use white for the best readability.

What is the closest Tailwind color to #400A51?

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

What colors go well with #400A51?

#400A51 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #1B520A. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #400A51 below.

Is #400A51 good for buttons?

#400A51 works well for buttons and highlights, but use white text on #400A51 — black text only reaches 1.38:1, below the 4.5:1 needed for normal-size labels.

Is #400A51 the same as CSS indigo?

No — #400A51 is not the CSS named color indigo, but indigo (#4B0082) is the closest CSS named color.

#400A51 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #400A51

Not just a swatch — here's how #400A51 works with other colors. Named schemes with #400A51 in its natural role, and a note on why the supporting colors balance it.

Luxury Packaging Feature · 5 colors

Feature #400A51 Anchor #141210 Accent #D89954 Secondary #2D2630 Surface #F3EDE3

Russian Violet 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 #400A51 Anchor #2A2A2E Secondary #6E6E74 Surface #EEE5DA Accent #21001C

Russian Violet 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 Russian Violet.

Berry & Cream Lead · 5 colors

Lead #400A51 Surface #F5E6D7 Anchor #5D203E Accent #E5C2C6 Secondary #332B2F

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

Vintage Leather Lead · 5 colors

Lead #400A51 Secondary #7E4630 Surface #ECD8C1 Accent #345249 Anchor #592235

Russian Violet 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 #400A51 Secondary #57475E Support #9C9087 Ink #18140F

Russian Violet 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 Russian Violet carrying the quiet middle.

Build a working theme in the generator →

Color Lab

How #400A51 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 48/100

Neutral

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

Softness 24/100

Low

Firm and assertive — carries weight and contrast.

Depth 73/100

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 38/100

Low

A faint retro warmth without tipping into sepia.

Luxury 75/100

High

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

Brand distinctiveness 48/100

Moderate

Recognisable but shares space with nearby hues.

UI accent fit 34/100

Low

Workable accent with care around contrast.

Surface fit 29/100

Low

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

Print safety 86/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #400A51

For UI

For branding

For interior

For fashion

People also use #400A51 with

Midnight Blue Tyrian Purple Castleton 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 15.2:1. Use

Subtle surface Use #E2BEED for cards and hover fills. Tint 80

Avoid beside #520A4B — 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 #400A51 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: #400A51;
  --color-base-rgb: 64 10 81;
  --color-base-oklch: oklch(28.3% 0.123 316.2);
  --color-50: #FBF1FE;
  --color-100: #F4DAFB;
  --color-200: #E7B6F6;
  --color-300: #D285EA;
  --color-400: #BB58DA;
  --color-500: #9F36BF;
  --color-600: #7B3091;
  --color-700: #582867;
  --color-800: #3A1E43;
  --color-900: #241429;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  russian-violet: {
    50: '#FBF1FE',
    100: '#F4DAFB',
    200: '#E7B6F6',
    300: '#D285EA',
    400: '#BB58DA',
    500: '#9F36BF',
    600: '#7B3091',
    700: '#582867',
    800: '#3A1E43',
    900: '#241429',
  },
}

$base: #400A51;
$base-ink: #FFFFFF;
$base-50: #FBF1FE;
$base-100: #F4DAFB;
$base-200: #E7B6F6;
$base-300: #D285EA;
$base-400: #BB58DA;
$base-500: #9F36BF;
$base-600: #7B3091;
$base-700: #582867;
$base-800: #3A1E43;
$base-900: #241429;
$base-hover: #340841;
$base-subtle: #D49BE5;

{
    "color": {
        "base": {
            "value": "#400A51",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#FBF1FE",
                "type": "color"
            },
            "100": {
                "value": "#F4DAFB",
                "type": "color"
            },
            "200": {
                "value": "#E7B6F6",
                "type": "color"
            },
            "300": {
                "value": "#D285EA",
                "type": "color"
            },
            "400": {
                "value": "#BB58DA",
                "type": "color"
            },
            "500": {
                "value": "#9F36BF",
                "type": "color"
            },
            "600": {
                "value": "#7B3091",
                "type": "color"
            },
            "700": {
                "value": "#582867",
                "type": "color"
            },
            "800": {
                "value": "#3A1E43",
                "type": "color"
            },
            "900": {
                "value": "#241429",
                "type": "color"
            }
        }
    }
}