What color is #340057?

#340057 is a very dark, vivid violet. In RGB it is rgb(52, 0, 87), and in HSL hsl(276, 100%, 17%).

Is #340057 accessible as text?

On white, #340057 has a contrast ratio of 16.36:1 (passes WCAG AA for body text); on black it is 1.28:1 (fails). For text placed on #340057, use white for the best readability.

What is the closest Tailwind color to #340057?

The nearest Tailwind CSS token is purple-950 (#3C0366).

What colors go well with #340057?

#340057 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #235700. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #340057 below.

Is #340057 good for buttons?

#340057 works well for buttons and highlights, but use white text on #340057 — black text only reaches 1.28:1, below the 4.5:1 needed for normal-size labels.

Is #340057 the same as CSS midnightblue?

No — #340057 is not the CSS named color midnightblue, but midnightblue (#191970) 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.

#340057 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #340057

Not just a swatch — here's how #340057 works with other colors. Named schemes with #340057 in its natural role, and a note on why the supporting colors balance it.

Luxury Packaging Feature · 5 colors

Feature #340057 Anchor #141210 Accent #D99855 Secondary #2B2631 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 #340057 Anchor #2A2A2E Secondary #6E6E74 Surface #EEE5DA Accent #19001F

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 #340057 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 #340057 Surface #F5E6D7 Anchor #5C2140 Accent #E5C2C7 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 #340057 Secondary #4E415D 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 #340057 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 22/100

Low

Firm and assertive — carries weight and contrast.

Depth 76/100

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 32/100

Low

A faint retro warmth without tipping into sepia.

Luxury 76/100

High

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

Brand distinctiveness 52/100

Moderate

Recognisable but shares space with nearby hues.

UI accent fit 28/100

Low

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

Surface fit 27/100

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 #340057

For UI

For branding

For interior

For fashion

People also use #340057 with

Navy Blue Tyrian Purple British Racing Green 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 16.4:1. Use

Subtle surface Use #DBB6F3 for cards and hover fills. Tint 80

Avoid beside #510057 — 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 #340057 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: #340057;
  --color-base-rgb: 52 0 87;
  --color-base-oklch: oklch(26.1% 0.136 304.6);
  --color-50: #F9F0FE;
  --color-100: #EED8FD;
  --color-200: #DEB1FC;
  --color-300: #C577F8;
  --color-400: #AA46EC;
  --color-500: #8C22D2;
  --color-600: #6D239F;
  --color-700: #4F1F70;
  --color-800: #351848;
  --color-900: #21112C;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  russian-violet: {
    50: '#F9F0FE',
    100: '#EED8FD',
    200: '#DEB1FC',
    300: '#C577F8',
    400: '#AA46EC',
    500: '#8C22D2',
    600: '#6D239F',
    700: '#4F1F70',
    800: '#351848',
    900: '#21112C',
  },
}

$base: #340057;
$base-ink: #FFFFFF;
$base-50: #F9F0FE;
$base-100: #EED8FD;
$base-200: #DEB1FC;
$base-300: #C577F8;
$base-400: #AA46EC;
$base-500: #8C22D2;
$base-600: #6D239F;
$base-700: #4F1F70;
$base-800: #351848;
$base-900: #21112C;
$base-hover: #2A0045;
$base-subtle: #C98FF0;

{
    "color": {
        "base": {
            "value": "#340057",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F9F0FE",
                "type": "color"
            },
            "100": {
                "value": "#EED8FD",
                "type": "color"
            },
            "200": {
                "value": "#DEB1FC",
                "type": "color"
            },
            "300": {
                "value": "#C577F8",
                "type": "color"
            },
            "400": {
                "value": "#AA46EC",
                "type": "color"
            },
            "500": {
                "value": "#8C22D2",
                "type": "color"
            },
            "600": {
                "value": "#6D239F",
                "type": "color"
            },
            "700": {
                "value": "#4F1F70",
                "type": "color"
            },
            "800": {
                "value": "#351848",
                "type": "color"
            },
            "900": {
                "value": "#21112C",
                "type": "color"
            }
        }
    }
}