What color is #31380A?

#31380A is a very dark, vivid lime green. In RGB it is rgb(49, 56, 10), and in HSL hsl(69, 70%, 13%).

Is #31380A accessible as text?

On white, #31380A has a contrast ratio of 12.35:1 (passes WCAG AA for body text); on black it is 1.70:1 (fails). For text placed on #31380A, use white for the best readability.

What is the closest Tailwind color to #31380A?

The nearest Tailwind CSS token is lime-950 (#192E03).

What colors go well with #31380A?

#31380A pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #110A38. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #31380A below.

Is #31380A good for buttons?

#31380A works well for buttons and highlights, but use white text on #31380A — black text only reaches 1.70:1, below the 4.5:1 needed for normal-size labels.

Is #31380A the same as CSS darkslategray?

No — #31380A 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.

#31380A Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #31380A

Not just a swatch — here's how #31380A works with other colors. Named schemes with #31380A in its natural role, and a note on why the supporting colors balance it.

Warm Autumn Interior Dominant · 5 colors

Dominant #31380A Secondary #B06904 Accent #6C7B49 Surface #F2ECDD Anchor #3A2B1F

This palette keeps British Racing Green as the dominant warm neutral, balanced by muted terracotta and olive earth tones and grounded by a deep espresso anchor.

Vintage Leather Lead · 5 colors

Lead #31380A Secondary #774D1E Surface #E7DBC0 Accent #3E513E Anchor #5B2325

British Racing 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.

Botanical Studio Lead · 5 colors

Lead #31380A Secondary #516A38 Accent #B06904 Surface #EFE9D6 Anchor #3D2F21

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

Desert Clay Center · 5 colors

Center #31380A Surface #DED0A8 Secondary #AC7D50 Accent #8E9A72 Anchor #3D2D1F

British Racing Green holds the warm center of this desert palette with sand and clay beside it, a muted-sage accent and a dark-brown anchor.

Minimal Editorial Surface · 5 colors

Surface #F7F4EF Accent #31380A Secondary #585B4C Support #999186 Ink #17140F

British Racing 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 British Racing Green carrying the quiet middle.

Build a working theme in the generator →

Color Lab

How #31380A 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 57/100

Neutral

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

Softness 31/100

Low

Firm and assertive — carries weight and contrast.

Depth 66/100

High

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

Naturalness 75/100

High

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

Vintage feel 51/100

Moderate

A faint retro warmth without tipping into sepia.

Luxury 69/100

High

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

Brand distinctiveness 26/100

Low

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

UI accent fit 38/100

Low

Workable accent with care around contrast.

Surface fit 44/100

Moderate

Usable as a tinted surface in measured doses.

Print safety 87/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #31380A

For UI

For branding

For interior

For fashion

People also use #31380A with

Espresso Sacramento Green Navy 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 12.3:1. Use

Subtle surface Use #E2E9BC for cards and hover fills. Tint 80

Avoid beside #22380A — 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 #31380A 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: #31380A;
  --color-base-rgb: 49 56 10;
  --color-base-oklch: oklch(32.4% 0.066 117.8);
  --color-50: #FBFDF1;
  --color-100: #F5FADB;
  --color-200: #EAF3BA;
  --color-300: #D7E58A;
  --color-400: #C2D35F;
  --color-500: #A6B83D;
  --color-600: #7F8C35;
  --color-700: #5B642B;
  --color-800: #3C4120;
  --color-900: #252815;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  british-racing-green: {
    50: '#FBFDF1',
    100: '#F5FADB',
    200: '#EAF3BA',
    300: '#D7E58A',
    400: '#C2D35F',
    500: '#A6B83D',
    600: '#7F8C35',
    700: '#5B642B',
    800: '#3C4120',
    900: '#252815',
  },
}

$base: #31380A;
$base-ink: #FFFFFF;
$base-50: #FBFDF1;
$base-100: #F5FADB;
$base-200: #EAF3BA;
$base-300: #D7E58A;
$base-400: #C2D35F;
$base-500: #A6B83D;
$base-600: #7F8C35;
$base-700: #5B642B;
$base-800: #3C4120;
$base-900: #252815;
$base-hover: #282D08;
$base-subtle: #D5E099;

{
    "color": {
        "base": {
            "value": "#31380A",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#FBFDF1",
                "type": "color"
            },
            "100": {
                "value": "#F5FADB",
                "type": "color"
            },
            "200": {
                "value": "#EAF3BA",
                "type": "color"
            },
            "300": {
                "value": "#D7E58A",
                "type": "color"
            },
            "400": {
                "value": "#C2D35F",
                "type": "color"
            },
            "500": {
                "value": "#A6B83D",
                "type": "color"
            },
            "600": {
                "value": "#7F8C35",
                "type": "color"
            },
            "700": {
                "value": "#5B642B",
                "type": "color"
            },
            "800": {
                "value": "#3C4120",
                "type": "color"
            },
            "900": {
                "value": "#252815",
                "type": "color"
            }
        }
    }
}

Palettes built on #31380A

Color Lab

Pairs with #31380A

UI roles & guardrails

In real applications

Scales

Every model

Export