What color is #3D331A?

#3D331A is a very dark brown. In RGB it is rgb(61, 51, 26), and in HSL hsl(43, 40%, 17%).

Is #3D331A accessible as text?

On white, #3D331A has a contrast ratio of 12.45:1 (passes WCAG AA for body text); on black it is 1.69:1 (fails). For text placed on #3D331A, use white for the best readability.

What is the closest Tailwind color to #3D331A?

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

What colors go well with #3D331A?

#3D331A pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #1A243D. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #3D331A below.

Is #3D331A good for buttons?

#3D331A works well for buttons and highlights, but use white text on #3D331A — black text only reaches 1.69:1, below the 4.5:1 needed for normal-size labels.

Is #3D331A the same as CSS darkslategray?

No — #3D331A 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.

#3D331A Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #3D331A

Not just a swatch — here's how #3D331A works with other colors. Named schemes with #3D331A in its natural role, and a note on why the supporting colors balance it.

Warm Autumn Interior Dominant · 5 colors

Dominant #3D331A Secondary #B36712 Accent #707A47 Surface #F3ECDD Anchor #3A2A1F

This palette keeps Bistre 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 #3D331A Secondary #784B21 Surface #E8DAC0 Accent #3F503D Anchor #5B2228

Bistre plays the worn-leather lead, deepened by saddle brown and an oxblood anchor, softened by aged cream and cooled by a muted forest green.

Desert Clay Center · 5 colors

Center #3D331A Surface #E0CFA8 Secondary #AE7B52 Accent #929970 Anchor #3D2C1F

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

Japanese Sand Base · 5 colors

Base #3D331A Surface #EFE9DC Highlight #F6F1E7 Secondary #B9AF9F Ink #2B2723

Bistre 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.

Minimal Editorial Surface · 5 colors

Surface #F7F4EF Accent #3D331A Secondary #5D5950 Support #9A9186 Ink #17140F

Bistre 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 Bistre carrying the quiet middle.

Build a working theme in the generator →

Color Lab

How #3D331A 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 60/100

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 57/100

Moderate

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

Vintage feel 47/100

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 16/100

Very low

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

UI accent fit 33/100

Low

Workable accent with care around contrast.

Surface fit 51/100

Moderate

Usable as a tinted surface in measured doses.

Print safety 94/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #3D331A

For UI

For branding

For interior

For fashion

People also use #3D331A with

Espresso British Racing Green Prussian Blue Greige 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 12.4:1. Use

Subtle surface Use #E1DAC8 for cards and hover fills. Tint 80

Avoid beside #3B3D1A — 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 #3D331A at work across the surfaces designers actually ship.

Website / UI

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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: #3D331A;
  --color-base-rgb: 61 51 26;
  --color-base-oklch: oklch(32.5% 0.042 88.3);
  --color-50: #FBF9F4;
  --color-100: #F3EEE2;
  --color-200: #E6DDC6;
  --color-300: #D1C39E;
  --color-400: #BAA778;
  --color-500: #9E8A57;
  --color-600: #7A6C48;
  --color-700: #584E37;
  --color-800: #3A3527;
  --color-900: #242119;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  bistre: {
    50: '#FBF9F4',
    100: '#F3EEE2',
    200: '#E6DDC6',
    300: '#D1C39E',
    400: '#BAA778',
    500: '#9E8A57',
    600: '#7A6C48',
    700: '#584E37',
    800: '#3A3527',
    900: '#242119',
  },
}

$base: #3D331A;
$base-ink: #FFFFFF;
$base-50: #FBF9F4;
$base-100: #F3EEE2;
$base-200: #E6DDC6;
$base-300: #D1C39E;
$base-400: #BAA778;
$base-500: #9E8A57;
$base-600: #7A6C48;
$base-700: #584E37;
$base-800: #3A3527;
$base-900: #242119;
$base-hover: #312915;
$base-subtle: #D3C8AC;

{
    "color": {
        "base": {
            "value": "#3D331A",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#FBF9F4",
                "type": "color"
            },
            "100": {
                "value": "#F3EEE2",
                "type": "color"
            },
            "200": {
                "value": "#E6DDC6",
                "type": "color"
            },
            "300": {
                "value": "#D1C39E",
                "type": "color"
            },
            "400": {
                "value": "#BAA778",
                "type": "color"
            },
            "500": {
                "value": "#9E8A57",
                "type": "color"
            },
            "600": {
                "value": "#7A6C48",
                "type": "color"
            },
            "700": {
                "value": "#584E37",
                "type": "color"
            },
            "800": {
                "value": "#3A3527",
                "type": "color"
            },
            "900": {
                "value": "#242119",
                "type": "color"
            }
        }
    }
}

Palettes built on #3D331A

Color Lab

Pairs with #3D331A

UI roles & guardrails

In real applications

Scales

Every model

Export