What color is #3B212B?

#3B212B is a dark, muted rose. In RGB it is rgb(59, 33, 43), and in HSL hsl(337, 28%, 18%).

Is #3B212B accessible as text?

On white, #3B212B has a contrast ratio of 14.60:1 (passes WCAG AA for body text); on black it is 1.44:1 (fails). For text placed on #3B212B, use white for the best readability.

What is the closest Tailwind color to #3B212B?

The nearest Tailwind CSS token is mauve-800 (#2A212C).

What colors go well with #3B212B?

#3B212B pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #213B31. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #3B212B below.

Is #3B212B good for buttons?

#3B212B works well for buttons and highlights, but use white text on #3B212B — black text only reaches 1.44:1, below the 4.5:1 needed for normal-size labels.

Is #3B212B the same as CSS darkslategray?

No — #3B212B 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.

#3B212B Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #3B212B

Not just a swatch — here's how #3B212B works with other colors. Named schemes with #3B212B in its natural role, and a note on why the supporting colors balance it.

Vintage Leather Lead · 5 colors

Lead #3B212B Secondary #7D482B Surface #EBD9C1 Accent #454F39 Anchor #5A2231

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.

Warm Autumn Interior Dominant · 5 colors

Dominant #3B212B Secondary #B9612E Accent #7B7641 Surface #F5EBDD Anchor #3C2921

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

Japanese Sand Base · 5 colors

Base #3B212B Surface #F1E8DC Highlight #F7F1E7 Secondary #BCAEA0 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.

Luxury Packaging Feature · 5 colors

Feature #3B212B Anchor #141210 Accent #D49C50 Secondary #312529 Surface #F3EDE3

Bistre 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 #3B212B Secondary #564B4F Support #9C9087 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 #3B212B 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 30/100

Low

Firm and assertive — carries weight and contrast.

Depth 68/100

High

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

Naturalness 13/100

Very low

Reads engineered rather than organic — synthetic, digital.

Vintage feel 42/100

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 17/100

Very low

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

UI accent fit 24/100

Low

Weak as an action color — too pale, too dark or too muted to signal.

Surface fit 53/100

Moderate

Usable as a tinted surface in measured doses.

Print safety 95/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #3B212B

For UI

For branding

For interior

For fashion

People also use #3B212B with

Eggplant Bistre Bottle Green Gainsboro Taupe

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 14.6:1. Use

Subtle surface Use #DECDD3 for cards and hover fills. Tint 80

Avoid beside #3B2122 — 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 #3B212B 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: #3B212B;
  --color-base-rgb: 59 33 43;
  --color-base-oklch: oklch(28.5% 0.043 355.5);
  --color-50: #FAF5F7;
  --color-100: #F1E5E9;
  --color-200: #E2CBD4;
  --color-300: #CAA6B3;
  --color-400: #B08294;
  --color-500: #936275;
  --color-600: #724F5D;
  --color-700: #533C45;
  --color-800: #372A2F;
  --color-900: #221B1E;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  bistre: {
    50: '#FAF5F7',
    100: '#F1E5E9',
    200: '#E2CBD4',
    300: '#CAA6B3',
    400: '#B08294',
    500: '#936275',
    600: '#724F5D',
    700: '#533C45',
    800: '#372A2F',
    900: '#221B1E',
  },
}

$base: #3B212B;
$base-ink: #FFFFFF;
$base-50: #FAF5F7;
$base-100: #F1E5E9;
$base-200: #E2CBD4;
$base-300: #CAA6B3;
$base-400: #B08294;
$base-500: #936275;
$base-600: #724F5D;
$base-700: #533C45;
$base-800: #372A2F;
$base-900: #221B1E;
$base-hover: #2F1A22;
$base-subtle: #CEB3BD;

{
    "color": {
        "base": {
            "value": "#3B212B",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#FAF5F7",
                "type": "color"
            },
            "100": {
                "value": "#F1E5E9",
                "type": "color"
            },
            "200": {
                "value": "#E2CBD4",
                "type": "color"
            },
            "300": {
                "value": "#CAA6B3",
                "type": "color"
            },
            "400": {
                "value": "#B08294",
                "type": "color"
            },
            "500": {
                "value": "#936275",
                "type": "color"
            },
            "600": {
                "value": "#724F5D",
                "type": "color"
            },
            "700": {
                "value": "#533C45",
                "type": "color"
            },
            "800": {
                "value": "#372A2F",
                "type": "color"
            },
            "900": {
                "value": "#221B1E",
                "type": "color"
            }
        }
    }
}