What color is #31391B?

#31391B is a very dark lime green. In RGB it is rgb(49, 57, 27), and in HSL hsl(76, 36%, 16%).

Is #31391B accessible as text?

On white, #31391B has a contrast ratio of 12.13:1 (passes WCAG AA for body text); on black it is 1.73:1 (fails). For text placed on #31391B, use white for the best readability.

What is the closest Tailwind color to #31391B?

The nearest Tailwind CSS token is olive-800 (#2B2B22).

What colors go well with #31391B?

#31391B pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #221A37. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #31391B below.

Is #31391B good for buttons?

#31391B works well for buttons and highlights, but use white text on #31391B — black text only reaches 1.73:1, below the 4.5:1 needed for normal-size labels.

Is #31391B the same as CSS darkslategray?

No — #31391B is not the CSS named color darkslategray, but darkslategray (#2F4F4F) 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.

#31391B Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #31391B

Not just a swatch — here's how #31391B works with other colors. Named schemes with #31391B in its natural role, and a note on why the supporting colors balance it.

Botanical Studio Lead · 5 colors

Lead #31391B Secondary #506B38 Accent #B06A02 Surface #EFE9D6 Anchor #3D2F21

Bottle Green leads this botanical set among foliage greens and a terracotta accent, softened by cream and grounded in bark brown.

Vintage Leather Lead · 5 colors

Lead #31391B Secondary #774D1D Surface #E7DBC0 Accent #3E513F Anchor #5B2324

Bottle Green 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 #31391B Surface #EEE9DC Highlight #F6F1E7 Secondary #B7B09F Ink #2B2723

Bottle Green 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 #31391B Anchor #141210 Accent #C4A54B Secondary #272B20 Surface #F2EDE3

Bottle Green 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 #F7F4EF Accent #31391B Secondary #595C51 Support #999286 Ink #17140F

Bottle Green 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 Bottle Green carrying the quiet middle.

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Color Lab

How #31391B 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 55/100

Neutral

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

Softness 33/100

Low

Middle-weight — neither delicate nor heavy.

Depth 64/100

High

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

Naturalness 62/100

High

Organic, earthy character — at home in wellness, food and craft brands.

Vintage feel 45/100

Moderate

A faint retro warmth without tipping into sepia.

Luxury 67/100

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 35/100

Low

Workable accent with care around contrast.

Surface fit 49/100

Moderate

Usable as a tinted surface in measured doses.

Print safety 90/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #31391B

For UI

For branding

For interior

For fashion

People also use #31391B with

Taupe Sacramento Green Graphite Platinum Army Green

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 12.1:1. Use

Subtle surface Use #D9DFC9 for cards and hover fills. Tint 80

Avoid beside #26371A — 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 #31391B 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: #31391B;
  --color-base-rgb: 49 57 27;
  --color-base-oklch: oklch(32.9% 0.049 121.4);
  --color-50: #F9FAF4;
  --color-100: #EEF2E3;
  --color-200: #DDE5C8;
  --color-300: #C2CFA0;
  --color-400: #A7B77B;
  --color-500: #899A5B;
  --color-600: #6B774A;
  --color-700: #4E5639;
  --color-800: #343928;
  --color-900: #21231A;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  bottle-green: {
    50: '#F9FAF4',
    100: '#EEF2E3',
    200: '#DDE5C8',
    300: '#C2CFA0',
    400: '#A7B77B',
    500: '#899A5B',
    600: '#6B774A',
    700: '#4E5639',
    800: '#343928',
    900: '#21231A',
  },
}

$base: #31391B;
$base-ink: #FFFFFF;
$base-50: #F9FAF4;
$base-100: #EEF2E3;
$base-200: #DDE5C8;
$base-300: #C2CFA0;
$base-400: #A7B77B;
$base-500: #899A5B;
$base-600: #6B774A;
$base-700: #4E5639;
$base-800: #343928;
$base-900: #21231A;
$base-hover: #262C15;
$base-subtle: #C7D0AD;

{
    "color": {
        "base": {
            "value": "#31391B",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F9FAF4",
                "type": "color"
            },
            "100": {
                "value": "#EEF2E3",
                "type": "color"
            },
            "200": {
                "value": "#DDE5C8",
                "type": "color"
            },
            "300": {
                "value": "#C2CFA0",
                "type": "color"
            },
            "400": {
                "value": "#A7B77B",
                "type": "color"
            },
            "500": {
                "value": "#899A5B",
                "type": "color"
            },
            "600": {
                "value": "#6B774A",
                "type": "color"
            },
            "700": {
                "value": "#4E5639",
                "type": "color"
            },
            "800": {
                "value": "#343928",
                "type": "color"
            },
            "900": {
                "value": "#21231A",
                "type": "color"
            }
        }
    }
}

Palettes built on #31391B

Color Lab

Pairs with #31391B

UI roles & guardrails

In real applications

Scales

Every model

Export