What color is #331D4D?

#331D4D is a dark violet. In RGB it is rgb(51, 29, 77), and in HSL hsl(268, 45%, 21%).

Is #331D4D accessible as text?

On white, #331D4D has a contrast ratio of 14.75:1 (passes WCAG AA for body text); on black it is 1.42:1 (fails). For text placed on #331D4D, use white for the best readability.

What is the closest Tailwind color to #331D4D?

The nearest Tailwind CSS token is indigo-950 (#1E1A4D).

What colors go well with #331D4D?

#331D4D pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #374E1D. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #331D4D below.

Is #331D4D good for buttons?

#331D4D works well for buttons and highlights, but use white text on #331D4D — black text only reaches 1.42:1, below the 4.5:1 needed for normal-size labels.

Is #331D4D the same as CSS midnightblue?

No — #331D4D 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.

#331D4D Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #331D4D

Not just a swatch — here's how #331D4D works with other colors. Named schemes with #331D4D in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #331D4D 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.

Nordic Calm Accent · 5 colors

Accent #331D4D Secondary #AFB4B8 Surface #F1F2F0 Support #7F92A7 Anchor #2E3236

Russian Violet keeps this Nordic scheme quiet — cool greys and a soft white around it, a muted-blue support and a charcoal anchor.

Vintage Leather Lead · 5 colors

Lead #331D4D Secondary #7E4631 Surface #EDD8C1 Accent #355248 Anchor #592236

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.

Luxury Packaging Feature · 5 colors

Feature #331D4D Anchor #141210 Accent #D99855 Secondary #2B2731 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.

Minimal Editorial Surface · 5 colors

Surface #F8F4EF Accent #331D4D Secondary #524B5D 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 #331D4D 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 42/100

Neutral

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

Softness 27/100

Low

Firm and assertive — carries weight and contrast.

Depth 70/100

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 44/100

Moderate

A faint retro warmth without tipping into sepia.

Luxury 74/100

High

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

Brand distinctiveness 33/100

Low

Recognisable but shares space with nearby hues.

UI accent fit 32/100

Low

Workable accent with care around contrast.

Surface fit 40/100

Moderate

Usable as a tinted surface in measured doses.

Print safety 89/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #331D4D

For UI

For branding

For interior

For fashion

People also use #331D4D with

Yale Blue Tyrian Purple Army 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 14.8:1. Use

Subtle surface Use #D6CAE4 for cards and hover fills. Tint 80

Avoid beside #441D4E — 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 #331D4D 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: #331D4D;
  --color-base-rgb: 51 29 77;
  --color-base-oklch: oklch(28.6% 0.086 302.4);
  --color-50: #F7F4FB;
  --color-100: #EAE1F4;
  --color-200: #D5C4E8;
  --color-300: #B69BD5;
  --color-400: #9774BE;
  --color-500: #7853A2;
  --color-600: #5F457D;
  --color-700: #46355A;
  --color-800: #30263B;
  --color-900: #1E1925;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  russian-violet: {
    50: '#F7F4FB',
    100: '#EAE1F4',
    200: '#D5C4E8',
    300: '#B69BD5',
    400: '#9774BE',
    500: '#7853A2',
    600: '#5F457D',
    700: '#46355A',
    800: '#30263B',
    900: '#1E1925',
  },
}

$base: #331D4D;
$base-ink: #FFFFFF;
$base-50: #F7F4FB;
$base-100: #EAE1F4;
$base-200: #D5C4E8;
$base-300: #B69BD5;
$base-400: #9774BE;
$base-500: #7853A2;
$base-600: #5F457D;
$base-700: #46355A;
$base-800: #30263B;
$base-900: #1E1925;
$base-hover: #2A183E;
$base-subtle: #C1AED7;

{
    "color": {
        "base": {
            "value": "#331D4D",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F7F4FB",
                "type": "color"
            },
            "100": {
                "value": "#EAE1F4",
                "type": "color"
            },
            "200": {
                "value": "#D5C4E8",
                "type": "color"
            },
            "300": {
                "value": "#B69BD5",
                "type": "color"
            },
            "400": {
                "value": "#9774BE",
                "type": "color"
            },
            "500": {
                "value": "#7853A2",
                "type": "color"
            },
            "600": {
                "value": "#5F457D",
                "type": "color"
            },
            "700": {
                "value": "#46355A",
                "type": "color"
            },
            "800": {
                "value": "#30263B",
                "type": "color"
            },
            "900": {
                "value": "#1E1925",
                "type": "color"
            }
        }
    }
}