What color is #312331?

#312331 is a very dark low-chroma warm gray with a subtle warm cast. In RGB it is rgb(49, 35, 49), and in HSL hsl(300, 17%, 16%).

Is #312331 accessible as text?

On white, #312331 has a contrast ratio of 14.84:1 (passes WCAG AA for body text); on black it is 1.42:1 (fails). For text placed on #312331, use white for the best readability.

What is the closest Tailwind color to #312331?

The nearest Tailwind CSS token is zinc-800 (#27272A).

What colors go well with #312331?

As a neutral, #312331 pairs cleanly with white, off-white and light grays for text, and sits under accent hues like blue, violet, emerald or warm orange — use it as a dark surface or high-contrast base and let the accent carry the color.

Is #312331 the same as CSS midnightblue?

No — #312331 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.

#312331 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #312331

Not just a swatch — here's how #312331 works with other colors. Named schemes with #312331 in its natural role, and a note on why the supporting colors balance it.

Vintage Leather Lead · 5 colors

Lead #312331 Secondary #7D472E Surface #ECD8C1 Accent #34524A Anchor #592234

Bistre 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 #312331 Surface #F1E8DC Highlight #F7F0E7 Secondary #BDADA1 Ink #2C2723

Bistre 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 #312331 Anchor #141210 Accent #D79A53 Secondary #2E262E Surface #F3EDE3

Bistre 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 #312331 Secondary #504B50 Support #9C9087 Ink #18140F

Bistre 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 Bistre carrying the quiet middle.

Berry & Cream Lead · 5 colors

Lead #312331 Surface #F5E6D7 Anchor #5D203D Accent #E6C2C6 Secondary #332B2E

Bistre 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 #312331 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 51/100

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 34/100

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 12/100

Very low

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

UI accent fit 21/100

Low

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

Surface fit 57/100

Moderate

Usable as a tinted surface in measured doses.

Print safety 96/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #312331

For UI

For branding

For interior

For fashion

People also use #312331 with

Onyx 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 14.8:1. Use

Subtle surface Use #D9CFD9 for cards and hover fills. Tint 80

Avoid beside #30222B — 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 #312331 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: #312331;
  --color-base-rgb: 49 35 49;
  --color-base-oklch: oklch(27.9% 0.032 326.4);
  --color-50: #F9F6F9;
  --color-100: #EEE7EE;
  --color-200: #DDCFDD;
  --color-300: #C3ADC3;
  --color-400: #A78BA7;
  --color-500: #896B89;
  --color-600: #6B566B;
  --color-700: #4E414E;
  --color-800: #352C35;
  --color-900: #211C21;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  bistre: {
    50: '#F9F6F9',
    100: '#EEE7EE',
    200: '#DDCFDD',
    300: '#C3ADC3',
    400: '#A78BA7',
    500: '#896B89',
    600: '#6B566B',
    700: '#4E414E',
    800: '#352C35',
    900: '#211C21',
  },
}

$base: #312331;
$base-ink: #FFFFFF;
$base-50: #F9F6F9;
$base-100: #EEE7EE;
$base-200: #DDCFDD;
$base-300: #C3ADC3;
$base-400: #A78BA7;
$base-500: #896B89;
$base-600: #6B566B;
$base-700: #4E414E;
$base-800: #352C35;
$base-900: #211C21;
$base-hover: #261B26;
$base-subtle: #C7B6C7;

{
    "color": {
        "base": {
            "value": "#312331",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F9F6F9",
                "type": "color"
            },
            "100": {
                "value": "#EEE7EE",
                "type": "color"
            },
            "200": {
                "value": "#DDCFDD",
                "type": "color"
            },
            "300": {
                "value": "#C3ADC3",
                "type": "color"
            },
            "400": {
                "value": "#A78BA7",
                "type": "color"
            },
            "500": {
                "value": "#896B89",
                "type": "color"
            },
            "600": {
                "value": "#6B566B",
                "type": "color"
            },
            "700": {
                "value": "#4E414E",
                "type": "color"
            },
            "800": {
                "value": "#352C35",
                "type": "color"
            },
            "900": {
                "value": "#211C21",
                "type": "color"
            }
        }
    }
}