What color is #031311?

#031311 is a very dark low-chroma cool gray with a subtle cool cast. In RGB it is rgb(3, 19, 17), and in HSL hsl(173, 73%, 4%).

Is #031311 accessible as text?

On white, #031311 has a contrast ratio of 19.00:1 (passes WCAG AA for body text); on black it is 1.11:1 (fails). For text placed on #031311, use white for the best readability.

What is the closest Tailwind color to #031311?

The nearest Tailwind CSS token is neutral-950 (#0A0A0A).

What colors go well with #031311?

As a neutral, #031311 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 #031311 the same as CSS black?

No — #031311 is not the CSS named color black, but black (#000000) is the closest CSS named color.

#031311 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #031311

Not just a swatch — here's how #031311 works with other colors. Named schemes with #031311 in its natural role, and a note on why the supporting colors balance it.

Vintage Leather Lead · 5 colors

Lead #031311 Secondary #725018 Surface #E4DCC0 Accent #3A5142 Anchor #5B241D

Jet Black 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 #031311 Surface #EDEADC Highlight #F5F2E7 Secondary #B5B19F Ink #2A2723

Jet Black 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 #031311 Anchor #141210 Accent #BAA94D Secondary #1E2C2A Surface #F1EDE3

Jet Black 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.

Moody Editorial Color · 5 colors

Color #031311 Anchor #292A2E Secondary #6D6E74 Surface #EAE7DA Accent #000101

Jet Black adds the colour to this moody editorial scheme — charcoal and a mid-grey around it, a bone highlight, and a muted jewel accent drawn from Jet Black.

Minimal Editorial Surface · 5 colors

Surface #F7F4EF Accent #031311 Secondary #2C3231 Support #979286 Ink #16140F

Jet Black 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 Jet Black carrying the quiet middle.

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Color Lab

How #031311 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 45/100

Neutral

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

Softness 19/100

Very low

Firm and assertive — carries weight and contrast.

Depth 78/100

High

Deep and grounding — anchors a layout, strong dark-mode base.

Naturalness 10/100

Very low

Reads engineered rather than organic — synthetic, digital.

Vintage feel 18/100

Very low

Clean and current — no dusty, aged cast.

Luxury 77/100

High

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

Brand distinctiveness 9/100

Very low

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

UI accent fit 6/100

Very low

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

Surface fit 67/100

High

Calm enough for large fills — backgrounds, cards, sections.

Print safety 94/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #031311

For UI

For branding

For interior

For fashion

People also use #031311 with

Sacramento Green Jet Black Platinum Dark Slate Gray

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 19.0:1. Use

Subtle surface Use #B4E8E2 for cards and hover fills. Tint 80

Avoid beside #030E12 — 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 #031311 at work across the surfaces designers actually ship.

Website / UI

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Dashboard

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$48.2k ▲ 12%

Brand

AVELINE

Studio

Poster

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Packaging

BLOOM

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250 ml

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Export

:root {
  --color-base: #031311;
  --color-base-rgb: 3 19 17;
  --color-base-oklch: oklch(17.1% 0.024 185.3);
  --color-50: #F1FDFC;
  --color-100: #DBFAF7;
  --color-200: #B9F4ED;
  --color-300: #88E7DC;
  --color-400: #5DD5C7;
  --color-500: #3ABBAC;
  --color-600: #338E84;
  --color-700: #2A655E;
  --color-800: #1F423E;
  --color-900: #152826;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  jet-black: {
    50: '#F1FDFC',
    100: '#DBFAF7',
    200: '#B9F4ED',
    300: '#88E7DC',
    400: '#5DD5C7',
    500: '#3ABBAC',
    600: '#338E84',
    700: '#2A655E',
    800: '#1F423E',
    900: '#152826',
  },
}

$base: #031311;
$base-ink: #FFFFFF;
$base-50: #F1FDFC;
$base-100: #DBFAF7;
$base-200: #B9F4ED;
$base-300: #88E7DC;
$base-400: #5DD5C7;
$base-500: #3ABBAC;
$base-600: #338E84;
$base-700: #2A655E;
$base-800: #1F423E;
$base-900: #152826;
$base-hover: #020E0D;
$base-subtle: #8DDED5;

{
    "color": {
        "base": {
            "value": "#031311",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F1FDFC",
                "type": "color"
            },
            "100": {
                "value": "#DBFAF7",
                "type": "color"
            },
            "200": {
                "value": "#B9F4ED",
                "type": "color"
            },
            "300": {
                "value": "#88E7DC",
                "type": "color"
            },
            "400": {
                "value": "#5DD5C7",
                "type": "color"
            },
            "500": {
                "value": "#3ABBAC",
                "type": "color"
            },
            "600": {
                "value": "#338E84",
                "type": "color"
            },
            "700": {
                "value": "#2A655E",
                "type": "color"
            },
            "800": {
                "value": "#1F423E",
                "type": "color"
            },
            "900": {
                "value": "#152826",
                "type": "color"
            }
        }
    }
}

Palettes built on #031311

Color Lab

Pairs with #031311

UI roles & guardrails

In real applications

Scales

Every model

Export