What color is #331C40?

#331C40 is a dark violet. In RGB it is rgb(51, 28, 64), and in HSL hsl(278, 39%, 18%).

Is #331C40 accessible as text?

On white, #331C40 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 #331C40, use white for the best readability.

What is the closest Tailwind color to #331C40?

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

What colors go well with #331C40?

#331C40 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #29401C. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #331C40 below.

Is #331C40 good for buttons?

#331C40 works well for buttons and highlights, but use white text on #331C40 — black text only reaches 1.38:1, below the 4.5:1 needed for normal-size labels.

Is #331C40 the same as CSS midnightblue?

No — #331C40 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.

#331C40 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #331C40

Not just a swatch — here's how #331C40 works with other colors. Named schemes with #331C40 in its natural role, and a note on why the supporting colors balance it.

Vintage Leather Lead · 5 colors

Lead #331C40 Secondary #7E4630 Surface #ECD8C1 Accent #355249 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 #331C40 Surface #F1E8DC Highlight #F8F0E7 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 #331C40 Anchor #141210 Accent #D99954 Secondary #2C2630 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 #331C40 Secondary #504856 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.

Berry & Cream Lead · 5 colors

Lead #331C40 Surface #F5E6D7 Anchor #5C213F Accent #E5C2C6 Secondary #332B2F

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 #331C40 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 47/100

Neutral

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

Softness 27/100

Low

Firm and assertive — carries weight and contrast.

Depth 71/100

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 41/100

Moderate

A faint retro warmth without tipping into sepia.

Luxury 73/100

High

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

Brand distinctiveness 27/100

Low

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

UI accent fit 26/100

Low

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

Surface fit 46/100

Moderate

Usable as a tinted surface in measured doses.

Print safety 92/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #331C40

For UI

For branding

For interior

For fashion

People also use #331C40 with

Russian Violet 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 15.2:1. Use

Subtle surface Use #D8C9E1 for cards and hover fills. Tint 80

Avoid beside #3F1C40 — 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 #331C40 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: #331C40;
  --color-base-rgb: 51 28 64;
  --color-base-oklch: oklch(27.5% 0.070 312.1);
  --color-50: #F8F4FB;
  --color-100: #EDE2F3;
  --color-200: #DAC6E6;
  --color-300: #BE9ED1;
  --color-400: #A279B9;
  --color-500: #84589D;
  --color-600: #674979;
  --color-700: #4C3857;
  --color-800: #33273A;
  --color-900: #201924;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  russian-violet: {
    50: '#F8F4FB',
    100: '#EDE2F3',
    200: '#DAC6E6',
    300: '#BE9ED1',
    400: '#A279B9',
    500: '#84589D',
    600: '#674979',
    700: '#4C3857',
    800: '#33273A',
    900: '#201924',
  },
}

$base: #331C40;
$base-ink: #FFFFFF;
$base-50: #F8F4FB;
$base-100: #EDE2F3;
$base-200: #DAC6E6;
$base-300: #BE9ED1;
$base-400: #A279B9;
$base-500: #84589D;
$base-600: #674979;
$base-700: #4C3857;
$base-800: #33273A;
$base-900: #201924;
$base-hover: #291633;
$base-subtle: #C5AED3;

{
    "color": {
        "base": {
            "value": "#331C40",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F8F4FB",
                "type": "color"
            },
            "100": {
                "value": "#EDE2F3",
                "type": "color"
            },
            "200": {
                "value": "#DAC6E6",
                "type": "color"
            },
            "300": {
                "value": "#BE9ED1",
                "type": "color"
            },
            "400": {
                "value": "#A279B9",
                "type": "color"
            },
            "500": {
                "value": "#84589D",
                "type": "color"
            },
            "600": {
                "value": "#674979",
                "type": "color"
            },
            "700": {
                "value": "#4C3857",
                "type": "color"
            },
            "800": {
                "value": "#33273A",
                "type": "color"
            },
            "900": {
                "value": "#201924",
                "type": "color"
            }
        }
    }
}