What color is #311F37?

#311F37 is a very dark, muted purple. In RGB it is rgb(49, 31, 55), and in HSL hsl(285, 28%, 17%).

Is #311F37 accessible as text?

On white, #311F37 has a contrast ratio of 15.20:1 (passes WCAG AA for body text); on black it is 1.38:1 (fails). For text placed on #311F37, use white for the best readability.

What is the closest Tailwind color to #311F37?

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

What colors go well with #311F37?

#311F37 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #25371F. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #311F37 below.

Is #311F37 good for buttons?

#311F37 works well for buttons and highlights, but use white text on #311F37 — black text only reaches 1.38:1, below the 4.5:1 needed for normal-size labels.

Is #311F37 the same as CSS midnightblue?

No — #311F37 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.

#311F37 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #311F37

Not just a swatch — here's how #311F37 works with other colors. Named schemes with #311F37 in its natural role, and a note on why the supporting colors balance it.

Vintage Leather Lead · 5 colors

Lead #311F37 Secondary #7E462F 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 #311F37 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 #311F37 Anchor #141210 Accent #D89954 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 #311F37 Secondary #4F4851 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 #311F37 Surface #F5E6D7 Anchor #5D203E 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 #311F37 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 49/100

Neutral

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

Softness 28/100

Low

Firm and assertive — carries weight and contrast.

Depth 70/100

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 36/100

Low

A faint retro warmth without tipping into sepia.

Luxury 72/100

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 23/100

Low

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

Surface fit 52/100

Moderate

Usable as a tinted surface in measured doses.

Print safety 94/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #311F37

For UI

For branding

For interior

For fashion

People also use #311F37 with

Gunmetal Gray Bistre Sacramento 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 15.2:1. Use

Subtle surface Use #D9CCDD for cards and hover fills. Tint 80

Avoid beside #371F35 — 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 #311F37 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: #311F37;
  --color-base-rgb: 49 31 55;
  --color-base-oklch: oklch(27.3% 0.050 317.4);
  --color-50: #F9F5FA;
  --color-100: #EEE5F1;
  --color-200: #DCCBE2;
  --color-300: #C1A6CA;
  --color-400: #A582B0;
  --color-500: #876293;
  --color-600: #6A4F72;
  --color-700: #4D3C53;
  --color-800: #342A37;
  --color-900: #201B22;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  russian-violet: {
    50: '#F9F5FA',
    100: '#EEE5F1',
    200: '#DCCBE2',
    300: '#C1A6CA',
    400: '#A582B0',
    500: '#876293',
    600: '#6A4F72',
    700: '#4D3C53',
    800: '#342A37',
    900: '#201B22',
  },
}

$base: #311F37;
$base-ink: #FFFFFF;
$base-50: #F9F5FA;
$base-100: #EEE5F1;
$base-200: #DCCBE2;
$base-300: #C1A6CA;
$base-400: #A582B0;
$base-500: #876293;
$base-600: #6A4F72;
$base-700: #4D3C53;
$base-800: #342A37;
$base-900: #201B22;
$base-hover: #28192C;
$base-subtle: #C6B2CD;

{
    "color": {
        "base": {
            "value": "#311F37",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F9F5FA",
                "type": "color"
            },
            "100": {
                "value": "#EEE5F1",
                "type": "color"
            },
            "200": {
                "value": "#DCCBE2",
                "type": "color"
            },
            "300": {
                "value": "#C1A6CA",
                "type": "color"
            },
            "400": {
                "value": "#A582B0",
                "type": "color"
            },
            "500": {
                "value": "#876293",
                "type": "color"
            },
            "600": {
                "value": "#6A4F72",
                "type": "color"
            },
            "700": {
                "value": "#4D3C53",
                "type": "color"
            },
            "800": {
                "value": "#342A37",
                "type": "color"
            },
            "900": {
                "value": "#201B22",
                "type": "color"
            }
        }
    }
}