What color is #402D64?

#402D64 is a dark violet. In RGB it is rgb(64, 45, 100), and in HSL hsl(261, 38%, 28%).

Is #402D64 accessible as text?

On white, #402D64 has a contrast ratio of 11.82:1 (passes WCAG AA for body text); on black it is 1.78:1 (fails). For text placed on #402D64, use white for the best readability.

What is the closest Tailwind color to #402D64?

The nearest Tailwind CSS token is indigo-900 (#312C85).

What colors go well with #402D64?

#402D64 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #50632C. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #402D64 below.

Is #402D64 good for buttons?

#402D64 works well for buttons and highlights, but use white text on #402D64 — black text only reaches 1.78:1, below the 4.5:1 needed for normal-size labels.

Is #402D64 the same as CSS darkslateblue?

No — #402D64 is not the CSS named color darkslateblue, but darkslateblue (#483D8B) is the closest CSS named color by perceptual color distance — it sits in a different color family, so treat it as a rough reference, not a match.

#402D64 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #402D64

Not just a swatch — here's how #402D64 works with other colors. Named schemes with #402D64 in its natural role, and a note on why the supporting colors balance it.

Luxury Packaging Feature · 5 colors

Feature #402D64 Anchor #141210 Accent #DA9856 Secondary #2A2732 Surface #F3ECE3

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 #402D64 Anchor #2A2A2E Secondary #6E6E74 Surface #EEE5DA Accent #281131

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.

Coastal Morning Lead · 5 colors

Lead #402D64 Accent #A5C4C4 Surface #E9D6BF Secondary #9AA0A1 Anchor #23334B

Russian Violet 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 #402D64 Surface #F5E6D7 Anchor #5C2140 Accent #E5C2C8 Secondary #332B2F

Russian Violet 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 #402D64 Secondary #625C71 Support #9C9088 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 #402D64 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 39/100

Neutral

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

Softness 31/100

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 49/100

Moderate

A faint retro warmth without tipping into sepia.

Luxury 70/100

High

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

Brand distinctiveness 36/100

Low

Recognisable but shares space with nearby hues.

UI accent fit 52/100

Moderate

Workable accent with care around contrast.

Surface fit 34/100

Low

Usable as a tinted surface in measured doses.

Print safety 88/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #402D64

For UI

For branding

For interior

For fashion

People also use #402D64 with

Classic Blue Byzantium Dark Olive Green Gainsboro Russian Violet

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 11.8:1. Use

Subtle surface Use #D7D0E4 for cards and hover fills. Tint 80

Avoid beside #512C63 — 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 #402D64 at work across the surfaces designers actually ship.

Website / UI

Northwind Sign up

Build faster.

A working theme, generated in seconds.

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: #402D64;
  --color-base-rgb: 64 45 100;
  --color-base-oklch: oklch(34.8% 0.094 297.2);
  --color-50: #F6F4FB;
  --color-100: #E8E2F3;
  --color-200: #D2C7E6;
  --color-300: #B09FD0;
  --color-400: #907AB8;
  --color-500: #70599C;
  --color-600: #5A4979;
  --color-700: #433857;
  --color-800: #2E273A;
  --color-900: #1D1924;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  russian-violet: {
    50: '#F6F4FB',
    100: '#E8E2F3',
    200: '#D2C7E6',
    300: '#B09FD0',
    400: '#907AB8',
    500: '#70599C',
    600: '#5A4979',
    700: '#433857',
    800: '#2E273A',
    900: '#1D1924',
  },
}

$base: #402D64;
$base-ink: #FFFFFF;
$base-50: #F6F4FB;
$base-100: #E8E2F3;
$base-200: #D2C7E6;
$base-300: #B09FD0;
$base-400: #907AB8;
$base-500: #70599C;
$base-600: #5A4979;
$base-700: #433857;
$base-800: #2E273A;
$base-900: #1D1924;
$base-hover: #33234F;
$base-subtle: #C3B8D8;

{
    "color": {
        "base": {
            "value": "#402D64",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F6F4FB",
                "type": "color"
            },
            "100": {
                "value": "#E8E2F3",
                "type": "color"
            },
            "200": {
                "value": "#D2C7E6",
                "type": "color"
            },
            "300": {
                "value": "#B09FD0",
                "type": "color"
            },
            "400": {
                "value": "#907AB8",
                "type": "color"
            },
            "500": {
                "value": "#70599C",
                "type": "color"
            },
            "600": {
                "value": "#5A4979",
                "type": "color"
            },
            "700": {
                "value": "#433857",
                "type": "color"
            },
            "800": {
                "value": "#2E273A",
                "type": "color"
            },
            "900": {
                "value": "#1D1924",
                "type": "color"
            }
        }
    }
}