What color is #031D15?

#031D15 is a very dark low-chroma cool gray with a subtle cool cast. In RGB it is rgb(3, 29, 21), and in HSL hsl(162, 81%, 6%).

Is #031D15 accessible as text?

On white, #031D15 has a contrast ratio of 17.64:1 (passes WCAG AA for body text); on black it is 1.19:1 (fails). For text placed on #031D15, use white for the best readability.

What is the closest Tailwind color to #031D15?

The nearest Tailwind CSS token is neutral-900 (#171717).

What colors go well with #031D15?

As a neutral, #031D15 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 #031D15 the same as CSS midnightblue?

No — #031D15 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.

#031D15 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #031D15

Not just a swatch — here's how #031D15 works with other colors. Named schemes with #031D15 in its natural role, and a note on why the supporting colors balance it.

Vintage Leather Lead · 5 colors

Lead #031D15 Secondary #734F19 Surface #E5DBC0 Accent #3B5141 Anchor #5B231F

Graphite 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 #031D15 Surface #EDEADC Highlight #F5F1E7 Secondary #B5B09F Ink #2A2723

Graphite 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 #031D15 Anchor #141210 Accent #BCA84C Secondary #1F2C27 Surface #F1EDE3

Graphite 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 #031D15 Anchor #292A2E Secondary #6C6F74 Surface #EBE7DA Accent #000403

Graphite 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 Graphite.

Minimal Editorial Surface · 5 colors

Surface #F7F4EF Accent #031D15 Secondary #343C39 Support #989286 Ink #16140F

Graphite 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 Graphite carrying the quiet middle.

Build a working theme in the generator →

Color Lab

How #031D15 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 22/100

Low

Firm and assertive — carries weight and contrast.

Depth 75/100

High

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

Naturalness 27/100

Low

Loosely natural — an earthy edge without being rustic.

Vintage feel 24/100

Low

Clean and current — no dusty, aged cast.

Luxury 75/100

High

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

Brand distinctiveness 14/100

Very low

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

UI accent fit 11/100

Very low

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

Surface fit 60/100

High

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

Print safety 93/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #031D15

For UI

For branding

For interior

For fashion

People also use #031D15 with

British Racing 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 17.6:1. Use

Subtle surface Use #B3EBDA for cards and hover fills. Tint 80

Avoid beside #031B1C — 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 #031D15 at work across the surfaces designers actually ship.

Website / UI

Northwind Sign up

Build faster.

A working theme, generated in seconds.

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: #031D15;
  --color-base-rgb: 3 29 21;
  --color-base-oklch: oklch(20.7% 0.037 169.8);
  --color-50: #F1FEFA;
  --color-100: #D9FCF2;
  --color-200: #B5F7E3;
  --color-300: #83ECCD;
  --color-400: #56DCB4;
  --color-500: #33C297;
  --color-600: #2E9375;
  --color-700: #276854;
  --color-800: #1D4438;
  --color-900: #142A23;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  graphite: {
    50: '#F1FEFA',
    100: '#D9FCF2',
    200: '#B5F7E3',
    300: '#83ECCD',
    400: '#56DCB4',
    500: '#33C297',
    600: '#2E9375',
    700: '#276854',
    800: '#1D4438',
    900: '#142A23',
  },
}

$base: #031D15;
$base-ink: #FFFFFF;
$base-50: #F1FEFA;
$base-100: #D9FCF2;
$base-200: #B5F7E3;
$base-300: #83ECCD;
$base-400: #56DCB4;
$base-500: #33C297;
$base-600: #2E9375;
$base-700: #276854;
$base-800: #1D4438;
$base-900: #142A23;
$base-hover: #021610;
$base-subtle: #8BE3C9;

{
    "color": {
        "base": {
            "value": "#031D15",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F1FEFA",
                "type": "color"
            },
            "100": {
                "value": "#D9FCF2",
                "type": "color"
            },
            "200": {
                "value": "#B5F7E3",
                "type": "color"
            },
            "300": {
                "value": "#83ECCD",
                "type": "color"
            },
            "400": {
                "value": "#56DCB4",
                "type": "color"
            },
            "500": {
                "value": "#33C297",
                "type": "color"
            },
            "600": {
                "value": "#2E9375",
                "type": "color"
            },
            "700": {
                "value": "#276854",
                "type": "color"
            },
            "800": {
                "value": "#1D4438",
                "type": "color"
            },
            "900": {
                "value": "#142A23",
                "type": "color"
            }
        }
    }
}

Palettes built on #031D15

Color Lab

Pairs with #031D15

UI roles & guardrails

In real applications

Scales

Every model

Export