What color is #312B2B?

#312B2B is a dark low-chroma warm gray with a subtle warm cast. In RGB it is rgb(49, 43, 43), and in HSL hsl(0, 7%, 18%).

Is #312B2B accessible as text?

On white, #312B2B has a contrast ratio of 13.90:1 (passes WCAG AA for body text); on black it is 1.51:1 (fails). For text placed on #312B2B, use white for the best readability.

What is the closest Tailwind color to #312B2B?

The nearest Tailwind CSS token is zinc-800 (#27272A).

What colors go well with #312B2B?

As a neutral, #312B2B 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 #312B2B the same as CSS darkslategray?

No — #312B2B 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.

#312B2B Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #312B2B

Not just a swatch — here's how #312B2B works with other colors. Named schemes with #312B2B in its natural role, and a note on why the supporting colors balance it.

Tech Product Signal · 5 colors

Signal #312B2B Surface #15161A Highlight #F4F6F8 Secondary #5E6473 Accent #504A4A

Bistre is the vivid signal in this product UI — on a near-black surface with cool white, a slate grey and a lighter tint of Bistre.

Vintage Leather Lead · 5 colors

Lead #312B2B Secondary #7C4828 Surface #EAD9C0 Accent #434F3A Anchor #5A222F

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.

Japanese Sand Base · 5 colors

Base #312B2B Surface #F0E8DC Highlight #F7F1E7 Secondary #BBAEA0 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 #312B2B Anchor #141210 Accent #D29D4E Secondary #322525 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 #312B2B Secondary #535151 Support #9B9087 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 #312B2B 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 52/100

Neutral

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

Softness 33/100

Low

Middle-weight — neither delicate nor heavy.

Depth 65/100

High

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

Naturalness 17/100

Very low

Reads engineered rather than organic — synthetic, digital.

Vintage feel 34/100

Low

A faint retro warmth without tipping into sepia.

Luxury 66/100

High

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

Brand distinctiveness 3/100

Very low

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

UI accent fit 19/100

Very low

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

Surface fit 63/100

High

Calm enough for large fills — backgrounds, cards, sections.

Print safety 99/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #312B2B

For UI

For branding

For interior

For fashion

People also use #312B2B with

Taupe Gunmetal Gray Gainsboro

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 13.9:1. Use

Subtle surface Use #D7D3D3 for cards and hover fills. Tint 80

Avoid beside #312D2B — 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 #312B2B 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: #312B2B;
  --color-base-rgb: 49 43 43;
  --color-base-oklch: oklch(29.6% 0.009 17.7);
  --color-50: #F8F7F7;
  --color-100: #ECE9E9;
  --color-200: #D9D3D3;
  --color-300: #BCB3B3;
  --color-400: #9F9393;
  --color-500: #817474;
  --color-600: #655D5D;
  --color-700: #4A4545;
  --color-800: #322F2F;
  --color-900: #201D1D;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  bistre: {
    50: '#F8F7F7',
    100: '#ECE9E9',
    200: '#D9D3D3',
    300: '#BCB3B3',
    400: '#9F9393',
    500: '#817474',
    600: '#655D5D',
    700: '#4A4545',
    800: '#322F2F',
    900: '#201D1D',
  },
}

$base: #312B2B;
$base-ink: #FFFFFF;
$base-50: #F8F7F7;
$base-100: #ECE9E9;
$base-200: #D9D3D3;
$base-300: #BCB3B3;
$base-400: #9F9393;
$base-500: #817474;
$base-600: #655D5D;
$base-700: #4A4545;
$base-800: #322F2F;
$base-900: #201D1D;
$base-hover: #272222;
$base-subtle: #C4BDBD;

{
    "color": {
        "base": {
            "value": "#312B2B",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F8F7F7",
                "type": "color"
            },
            "100": {
                "value": "#ECE9E9",
                "type": "color"
            },
            "200": {
                "value": "#D9D3D3",
                "type": "color"
            },
            "300": {
                "value": "#BCB3B3",
                "type": "color"
            },
            "400": {
                "value": "#9F9393",
                "type": "color"
            },
            "500": {
                "value": "#817474",
                "type": "color"
            },
            "600": {
                "value": "#655D5D",
                "type": "color"
            },
            "700": {
                "value": "#4A4545",
                "type": "color"
            },
            "800": {
                "value": "#322F2F",
                "type": "color"
            },
            "900": {
                "value": "#201D1D",
                "type": "color"
            }
        }
    }
}

Palettes built on #312B2B

Color Lab

Pairs with #312B2B

UI roles & guardrails

In real applications

Scales

Every model

Export