What color is #37243B?

#37243B is a dark, muted purple. In RGB it is rgb(55, 36, 59), and in HSL hsl(290, 24%, 19%).

Is #37243B accessible as text?

On white, #37243B has a contrast ratio of 14.21:1 (passes WCAG AA for body text); on black it is 1.48:1 (fails). For text placed on #37243B, use white for the best readability.

What is the closest Tailwind color to #37243B?

The nearest Tailwind CSS token is mauve-800 (#2A212C).

What colors go well with #37243B?

#37243B pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #293C25. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #37243B below.

Is #37243B good for buttons?

#37243B works well for buttons and highlights, but use white text on #37243B — black text only reaches 1.48:1, below the 4.5:1 needed for normal-size labels.

Is #37243B the same as CSS midnightblue?

No — #37243B 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.

#37243B Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #37243B

Not just a swatch — here's how #37243B works with other colors. Named schemes with #37243B in its natural role, and a note on why the supporting colors balance it.

Vintage Leather Lead · 5 colors

Lead #37243B Secondary #7E472F 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.

Japanese Sand Base · 5 colors

Base #37243B Surface #F1E8DC Highlight #F7F0E7 Secondary #BDADA1 Ink #2C2723

Russian Violet sets a calm, sun-bleached base here, wrapped in bone and paper off-whites and a soft greige, with a single ink accent for wabi-sabi restraint.

Luxury Packaging Feature · 5 colors

Feature #37243B Anchor #141210 Accent #D89953 Secondary #2D262F 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.

Minimal Editorial Surface · 5 colors

Surface #F8F4EF Accent #37243B Secondary #554E57 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.

Berry & Cream Lead · 5 colors

Lead #37243B Surface #F5E6D7 Anchor #5D203E Accent #E5C2C6 Secondary #332B2E

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

Build a working theme in the generator →

Color Lab

How #37243B 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 50/100

Neutral

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

Softness 30/100

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 38/100

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 19/100

Very low

Quiet and neutral — a supporting tone, not a signature.

UI accent fit 27/100

Low

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

Surface fit 51/100

Moderate

Usable as a tinted surface in measured doses.

Print safety 95/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #37243B

For UI

For branding

For interior

For fashion

People also use #37243B with

Onyx Bistre Bottle 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 14.2:1. Use

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

Avoid beside #3C2538 — 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 #37243B 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: #37243B;
  --color-base-rgb: 55 36 59;
  --color-base-oklch: oklch(29.4% 0.048 320.5);
  --color-50: #F9F5F9;
  --color-100: #EEE5F0;
  --color-200: #DDCCE0;
  --color-300: #C2A8C7;
  --color-400: #A685AD;
  --color-500: #886590;
  --color-600: #6B5270;
  --color-700: #4E3E51;
  --color-800: #342B36;
  --color-900: #211B22;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  russian-violet: {
    50: '#F9F5F9',
    100: '#EEE5F0',
    200: '#DDCCE0',
    300: '#C2A8C7',
    400: '#A685AD',
    500: '#886590',
    600: '#6B5270',
    700: '#4E3E51',
    800: '#342B36',
    900: '#211B22',
  },
}

$base: #37243B;
$base-ink: #FFFFFF;
$base-50: #F9F5F9;
$base-100: #EEE5F0;
$base-200: #DDCCE0;
$base-300: #C2A8C7;
$base-400: #A685AD;
$base-500: #886590;
$base-600: #6B5270;
$base-700: #4E3E51;
$base-800: #342B36;
$base-900: #211B22;
$base-hover: #2D1D30;
$base-subtle: #C9B6CC;

{
    "color": {
        "base": {
            "value": "#37243B",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F9F5F9",
                "type": "color"
            },
            "100": {
                "value": "#EEE5F0",
                "type": "color"
            },
            "200": {
                "value": "#DDCCE0",
                "type": "color"
            },
            "300": {
                "value": "#C2A8C7",
                "type": "color"
            },
            "400": {
                "value": "#A685AD",
                "type": "color"
            },
            "500": {
                "value": "#886590",
                "type": "color"
            },
            "600": {
                "value": "#6B5270",
                "type": "color"
            },
            "700": {
                "value": "#4E3E51",
                "type": "color"
            },
            "800": {
                "value": "#342B36",
                "type": "color"
            },
            "900": {
                "value": "#211B22",
                "type": "color"
            }
        }
    }
}