What color is #313A01?

#313A01 is a very dark, vivid lime green. In RGB it is rgb(49, 58, 1), and in HSL hsl(69, 97%, 12%).

Is #313A01 accessible as text?

On white, #313A01 has a contrast ratio of 12.10:1 (passes WCAG AA for body text); on black it is 1.74:1 (fails). For text placed on #313A01, use white for the best readability.

What is the closest Tailwind color to #313A01?

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

What colors go well with #313A01?

#313A01 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #0A013C. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #313A01 below.

Is #313A01 good for buttons?

#313A01 works well for buttons and highlights, but use white text on #313A01 — black text only reaches 1.74:1, below the 4.5:1 needed for normal-size labels.

Is #313A01 the same as CSS darkslategray?

No — #313A01 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.

#313A01 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #313A01

Not just a swatch — here's how #313A01 works with other colors. Named schemes with #313A01 in its natural role, and a note on why the supporting colors balance it.

Warm Autumn Interior Dominant · 5 colors

Dominant #313A01 Secondary #B06A03 Accent #6C7B4A 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 #313A01 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 #313A01 Secondary #506A38 Accent #B06A03 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 #313A01 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 #313A01 Secondary #585D4C 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 #313A01 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 58/100

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 86/100

Very high

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

Vintage feel 54/100

Moderate

A faint retro warmth without tipping into sepia.

Luxury 70/100

High

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

Brand distinctiveness 29/100

Low

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

UI accent fit 42/100

Moderate

Workable accent with care around contrast.

Surface fit 40/100

Moderate

Usable as a tinted surface in measured doses.

Print safety 85/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #313A01

For UI

For branding

For interior

For fashion

People also use #313A01 with

Sepia British Racing 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 12.1:1. Use

Subtle surface Use #E8F1B3 for cards and hover fills. Tint 80

Avoid beside #203C01 — 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 #313A01 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: #313A01;
  --color-base-rgb: 49 58 1;
  --color-base-oklch: oklch(32.9% 0.076 119.0);
  --color-50: #FCFEF0;
  --color-100: #F8FDD8;
  --color-200: #F0FCB1;
  --color-300: #E3F679;
  --color-400: #D1E949;
  --color-500: #B6D025;
  --color-600: #8B9D25;
  --color-700: #636F20;
  --color-800: #414819;
  --color-900: #282C11;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  british-racing-green: {
    50: '#FCFEF0',
    100: '#F8FDD8',
    200: '#F0FCB1',
    300: '#E3F679',
    400: '#D1E949',
    500: '#B6D025',
    600: '#8B9D25',
    700: '#636F20',
    800: '#414819',
    900: '#282C11',
  },
}

$base: #313A01;
$base-ink: #FFFFFF;
$base-50: #FCFEF0;
$base-100: #F8FDD8;
$base-200: #F0FCB1;
$base-300: #E3F679;
$base-400: #D1E949;
$base-500: #B6D025;
$base-600: #8B9D25;
$base-700: #636F20;
$base-800: #414819;
$base-900: #282C11;
$base-hover: #293001;
$base-subtle: #DEED8A;

{
    "color": {
        "base": {
            "value": "#313A01",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#FCFEF0",
                "type": "color"
            },
            "100": {
                "value": "#F8FDD8",
                "type": "color"
            },
            "200": {
                "value": "#F0FCB1",
                "type": "color"
            },
            "300": {
                "value": "#E3F679",
                "type": "color"
            },
            "400": {
                "value": "#D1E949",
                "type": "color"
            },
            "500": {
                "value": "#B6D025",
                "type": "color"
            },
            "600": {
                "value": "#8B9D25",
                "type": "color"
            },
            "700": {
                "value": "#636F20",
                "type": "color"
            },
            "800": {
                "value": "#414819",
                "type": "color"
            },
            "900": {
                "value": "#282C11",
                "type": "color"
            }
        }
    }
}

Palettes built on #313A01

Color Lab

Pairs with #313A01

UI roles & guardrails

In real applications

Scales

Every model

Export