What color is #400643?

#400643 is a very dark, vivid purple. In RGB it is rgb(64, 6, 67), and in HSL hsl(297, 84%, 14%).

Is #400643 accessible as text?

On white, #400643 has a contrast ratio of 15.85:1 (passes WCAG AA for body text); on black it is 1.33:1 (fails). For text placed on #400643, use white for the best readability.

What is the closest Tailwind color to #400643?

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

What colors go well with #400643?

#400643 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #094206. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #400643 below.

Is #400643 good for buttons?

#400643 works well for buttons and highlights, but use white text on #400643 — black text only reaches 1.33:1, below the 4.5:1 needed for normal-size labels.

Is #400643 the same as CSS indigo?

No — #400643 is not the CSS named color indigo, but indigo (#4B0082) is the closest CSS named color.

#400643 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #400643

Not just a swatch — here's how #400643 works with other colors. Named schemes with #400643 in its natural role, and a note on why the supporting colors balance it.

Luxury Packaging Feature · 5 colors

Feature #400643 Anchor #141210 Accent #D79A53 Secondary #2E262E Surface #F3EDE3

Deep Purple 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 #400643 Anchor #2A2A2E Secondary #6F6E74 Surface #EEE5DA Accent #1E0013

Deep Purple 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 Deep Purple.

Berry & Cream Lead · 5 colors

Lead #400643 Surface #F5E6D7 Anchor #5D203D Accent #E6C2C6 Secondary #332B2E

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

Vintage Leather Lead · 5 colors

Lead #400643 Secondary #7D472E Surface #ECD8C1 Accent #34524A Anchor #592234

Deep Purple 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 #400643 Secondary #564356 Support #9C9087 Ink #18140F

Deep Purple 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 Deep Purple carrying the quiet middle.

Build a working theme in the generator →

Color Lab

How #400643 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 54/100

Neutral

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

Softness 24/100

Low

Firm and assertive — carries weight and contrast.

Depth 74/100

High

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

Naturalness 2/100

Very low

Reads engineered rather than organic — synthetic, digital.

Vintage feel 41/100

Moderate

A faint retro warmth without tipping into sepia.

Luxury 78/100

High

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

Brand distinctiveness 44/100

Moderate

Recognisable but shares space with nearby hues.

UI accent fit 30/100

Low

Weak as an action color — too pale, too dark or too muted to signal.

Surface fit 33/100

Low

Usable as a tinted surface in measured doses.

Print safety 87/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #400643

For UI

For branding

For interior

For fashion

People also use #400643 with

Midnight Blue Oxblood British Racing Green Gainsboro Byzantium

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 15.8:1. Use

Subtle surface Use #EBB9EE for cards and hover fills. Tint 80

Avoid beside #420631 — 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 #400643 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: #400643;
  --color-base-rgb: 64 6 67;
  --color-base-oklch: oklch(26.9% 0.115 325.9);
  --color-50: #FEF0FE;
  --color-100: #FBD8FD;
  --color-200: #F5B4F8;
  --color-300: #E881EE;
  --color-400: #D853DF;
  --color-500: #BD30C4;
  --color-600: #902D95;
  --color-700: #662569;
  --color-800: #431C45;
  --color-900: #29132A;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  deep-purple: {
    50: '#FEF0FE',
    100: '#FBD8FD',
    200: '#F5B4F8',
    300: '#E881EE',
    400: '#D853DF',
    500: '#BD30C4',
    600: '#902D95',
    700: '#662569',
    800: '#431C45',
    900: '#29132A',
  },
}

$base: #400643;
$base-ink: #FFFFFF;
$base-50: #FEF0FE;
$base-100: #FBD8FD;
$base-200: #F5B4F8;
$base-300: #E881EE;
$base-400: #D853DF;
$base-500: #BD30C4;
$base-600: #902D95;
$base-700: #662569;
$base-800: #431C45;
$base-900: #29132A;
$base-hover: #320535;
$base-subtle: #E393E7;

{
    "color": {
        "base": {
            "value": "#400643",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#FEF0FE",
                "type": "color"
            },
            "100": {
                "value": "#FBD8FD",
                "type": "color"
            },
            "200": {
                "value": "#F5B4F8",
                "type": "color"
            },
            "300": {
                "value": "#E881EE",
                "type": "color"
            },
            "400": {
                "value": "#D853DF",
                "type": "color"
            },
            "500": {
                "value": "#BD30C4",
                "type": "color"
            },
            "600": {
                "value": "#902D95",
                "type": "color"
            },
            "700": {
                "value": "#662569",
                "type": "color"
            },
            "800": {
                "value": "#431C45",
                "type": "color"
            },
            "900": {
                "value": "#29132A",
                "type": "color"
            }
        }
    }
}