What color is #403121?

#403121 is a dark low-chroma warm gray with a subtle warm cast. In RGB it is rgb(64, 49, 33), and in HSL hsl(31, 32%, 19%).

Is #403121 accessible as text?

On white, #403121 has a contrast ratio of 12.51:1 (passes WCAG AA for body text); on black it is 1.68:1 (fails). For text placed on #403121, use white for the best readability.

What is the closest Tailwind color to #403121?

The nearest Tailwind CSS token is stone-700 (#44403B).

What colors go well with #403121?

As a neutral, #403121 pairs cleanly with white, off-white and light grays for text, and sits under accent hues like blue, violet, emerald or warm orange — use it as a dark surface or high-contrast base and let the accent carry the color.

Is #403121 the same as CSS darkslategray?

No — #403121 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.

#403121 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #403121

Not just a swatch — here's how #403121 works with other colors. Named schemes with #403121 in its natural role, and a note on why the supporting colors balance it.

Warm Autumn Interior Dominant · 5 colors

Dominant #403121 Secondary #B46619 Accent #727945 Surface #F3ECDD Anchor #3B2A20

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 #403121 Secondary #794A23 Surface #E9DAC0 Accent #40503C Anchor #5B222A

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 #403121 Surface #E1CFA8 Secondary #AF7B54 Accent #94986F Anchor #3E2C20

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 #403121 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 #403121 Secondary #5E5853 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 #403121 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 34/100

Low

Middle-weight — neither delicate nor heavy.

Depth 64/100

High

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

Naturalness 47/100

Moderate

Loosely natural — an earthy edge without being rustic.

Vintage feel 46/100

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 13/100

Very low

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

UI accent fit 31/100

Low

Workable accent with care around contrast.

Surface fit 53/100

Moderate

Usable as a tinted surface in measured doses.

Print safety 96/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #403121

For UI

For branding

For interior

For fashion

People also use #403121 with

Wine Red Taupe Gunmetal Gray Greige

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 12.5:1. Use

Subtle surface Use #DFD6CC for cards and hover fills. Tint 80

Avoid beside #403B21 — 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 #403121 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: #403121;
  --color-base-rgb: 64 49 33;
  --color-base-oklch: oklch(32.5% 0.034 68.0);
  --color-50: #FAF7F5;
  --color-100: #F2EBE4;
  --color-200: #E3D7C9;
  --color-300: #CCB8A3;
  --color-400: #B39A7F;
  --color-500: #977B5E;
  --color-600: #75624D;
  --color-700: #54483A;
  --color-800: #383129;
  --color-900: #231F1A;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  bistre: {
    50: '#FAF7F5',
    100: '#F2EBE4',
    200: '#E3D7C9',
    300: '#CCB8A3',
    400: '#B39A7F',
    500: '#977B5E',
    600: '#75624D',
    700: '#54483A',
    800: '#383129',
    900: '#231F1A',
  },
}

$base: #403121;
$base-ink: #FFFFFF;
$base-50: #FAF7F5;
$base-100: #F2EBE4;
$base-200: #E3D7C9;
$base-300: #CCB8A3;
$base-400: #B39A7F;
$base-500: #977B5E;
$base-600: #75624D;
$base-700: #54483A;
$base-800: #383129;
$base-900: #231F1A;
$base-hover: #33271A;
$base-subtle: #D0C2B2;

{
    "color": {
        "base": {
            "value": "#403121",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#FAF7F5",
                "type": "color"
            },
            "100": {
                "value": "#F2EBE4",
                "type": "color"
            },
            "200": {
                "value": "#E3D7C9",
                "type": "color"
            },
            "300": {
                "value": "#CCB8A3",
                "type": "color"
            },
            "400": {
                "value": "#B39A7F",
                "type": "color"
            },
            "500": {
                "value": "#977B5E",
                "type": "color"
            },
            "600": {
                "value": "#75624D",
                "type": "color"
            },
            "700": {
                "value": "#54483A",
                "type": "color"
            },
            "800": {
                "value": "#383129",
                "type": "color"
            },
            "900": {
                "value": "#231F1A",
                "type": "color"
            }
        }
    }
}

Palettes built on #403121

Color Lab

Pairs with #403121

UI roles & guardrails

In real applications

Scales

Every model

Export