What color is #313D21?

#313D21 is a dark, muted green. In RGB it is rgb(49, 61, 33), and in HSL hsl(86, 30%, 18%).

Is #313D21 accessible as text?

On white, #313D21 has a contrast ratio of 11.54:1 (passes WCAG AA for body text); on black it is 1.82:1 (fails). For text placed on #313D21, use white for the best readability.

What is the closest Tailwind color to #313D21?

The nearest Tailwind CSS token is taupe-700 (#473C39).

What colors go well with #313D21?

#313D21 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #2C203C. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #313D21 below.

Is #313D21 good for buttons?

#313D21 works well for buttons and highlights, but use white text on #313D21 — black text only reaches 1.82:1, below the 4.5:1 needed for normal-size labels.

Is #313D21 the same as CSS darkslategray?

No — #313D21 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.

#313D21 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #313D21

Not just a swatch — here's how #313D21 works with other colors. Named schemes with #313D21 in its natural role, and a note on why the supporting colors balance it.

Botanical Studio Lead · 5 colors

Lead #313D21 Secondary #4F6B39 Accent #AF6A00 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.

Vintage Leather Lead · 5 colors

Lead #313D21 Secondary #764D1D Surface #E6DBC0 Accent #3D513F Anchor #5B2324

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.

Japanese Sand Base · 5 colors

Base #313D21 Surface #EEE9DC Highlight #F5F1E7 Secondary #B7B09F Ink #2B2723

British Racing 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 #313D21 Anchor #141210 Accent #C3A54B Secondary #262B20 Surface #F2EDE3

British Racing 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 #313D21 Secondary #5B6056 Support #999286 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 #313D21 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 53/100

Neutral

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

Softness 34/100

Low

Middle-weight — neither delicate nor heavy.

Depth 63/100

High

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

Naturalness 66/100

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 66/100

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 38/100

Low

Workable accent with care around contrast.

Surface fit 48/100

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 #313D21

For UI

For branding

For interior

For fashion

People also use #313D21 with

Army Green British Racing Green Russian Violet Platinum

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 11.5:1. Use

Subtle surface Use #D6DECC for cards and hover fills. Tint 80

Avoid beside #273C20 — 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 #313D21 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: #313D21;
  --color-base-rgb: 49 61 33;
  --color-base-oklch: oklch(34.1% 0.049 127.7);
  --color-50: #F8FAF5;
  --color-100: #EBF1E4;
  --color-200: #D8E2CA;
  --color-300: #BACBA4;
  --color-400: #9CB280;
  --color-500: #7E9560;
  --color-600: #63744E;
  --color-700: #49543B;
  --color-800: #313829;
  --color-900: #1F231B;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  british-racing-green: {
    50: '#F8FAF5',
    100: '#EBF1E4',
    200: '#D8E2CA',
    300: '#BACBA4',
    400: '#9CB280',
    500: '#7E9560',
    600: '#63744E',
    700: '#49543B',
    800: '#313829',
    900: '#1F231B',
  },
}

$base: #313D21;
$base-ink: #FFFFFF;
$base-50: #F8FAF5;
$base-100: #EBF1E4;
$base-200: #D8E2CA;
$base-300: #BACBA4;
$base-400: #9CB280;
$base-500: #7E9560;
$base-600: #63744E;
$base-700: #49543B;
$base-800: #313829;
$base-900: #1F231B;
$base-hover: #26301A;
$base-subtle: #C2CFB2;

{
    "color": {
        "base": {
            "value": "#313D21",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F8FAF5",
                "type": "color"
            },
            "100": {
                "value": "#EBF1E4",
                "type": "color"
            },
            "200": {
                "value": "#D8E2CA",
                "type": "color"
            },
            "300": {
                "value": "#BACBA4",
                "type": "color"
            },
            "400": {
                "value": "#9CB280",
                "type": "color"
            },
            "500": {
                "value": "#7E9560",
                "type": "color"
            },
            "600": {
                "value": "#63744E",
                "type": "color"
            },
            "700": {
                "value": "#49543B",
                "type": "color"
            },
            "800": {
                "value": "#313829",
                "type": "color"
            },
            "900": {
                "value": "#1F231B",
                "type": "color"
            }
        }
    }
}

Palettes built on #313D21

Color Lab

Pairs with #313D21

UI roles & guardrails

In real applications

Scales

Every model

Export