What color is #3F3731?

#3F3731 is a dark low-chroma warm gray with a subtle warm cast. In RGB it is rgb(63, 55, 49), and in HSL hsl(26, 13%, 22%).

Is #3F3731 accessible as text?

On white, #3F3731 has a contrast ratio of 11.65:1 (passes WCAG AA for body text); on black it is 1.80:1 (fails). For text placed on #3F3731, use white for the best readability.

What is the closest Tailwind color to #3F3731?

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

What colors go well with #3F3731?

As a neutral, #3F3731 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 #3F3731 the same as CSS darkslategray?

No — #3F3731 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.

#3F3731 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #3F3731

Not just a swatch — here's how #3F3731 works with other colors. Named schemes with #3F3731 in its natural role, and a note on why the supporting colors balance it.

Tech Product Signal · 5 colors

Signal #3F3731 Surface #15161A Highlight #F4F6F8 Secondary #5F6473 Accent #5F5751

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

Vintage Leather Lead · 5 colors

Lead #3F3731 Secondary #7A4A24 Surface #E9DAC0 Accent #41503C Anchor #5B222B

Onyx 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 #3F3731 Surface #F0E9DC Highlight #F6F1E7 Secondary #BAAF9F Ink #2B2723

Onyx 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 #3F3731 Anchor #141210 Accent #CCA04C Secondary #31271F Surface #F2EDE3

Onyx 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 #3F3731 Secondary #615E5B Support #9A9186 Ink #17140F

Onyx 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 Onyx carrying the quiet middle.

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Color Lab

How #3F3731 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 54/100

Neutral

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

Softness 37/100

Low

Middle-weight — neither delicate nor heavy.

Depth 61/100

High

Mid depth — usable as an accent or a muted ground.

Naturalness 28/100

Low

Loosely natural — an earthy edge without being rustic.

Vintage feel 41/100

Moderate

A faint retro warmth without tipping into sepia.

Luxury 63/100

High

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

Brand distinctiveness 6/100

Very low

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

UI accent fit 29/100

Low

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

Surface fit 58/100

Moderate

Usable as a tinted surface in measured doses.

Print safety 98/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #3F3731

For UI

For branding

For interior

For fashion

People also use #3F3731 with

Eggplant Taupe Onyx 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 11.7:1. Use

Subtle surface Use #DBD7D3 for cards and hover fills. Tint 80

Avoid beside #3F3C31 — 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 #3F3731 at work across the surfaces designers actually ship.

Website / UI

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Build faster.

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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: #3F3731;
  --color-base-rgb: 63 55 49;
  --color-base-oklch: oklch(34.3% 0.015 59.1);
  --color-50: #F8F7F6;
  --color-100: #EDEAE8;
  --color-200: #DBD5D1;
  --color-300: #C0B6AF;
  --color-400: #A4988E;
  --color-500: #86796F;
  --color-600: #696059;
  --color-700: #4D4742;
  --color-800: #34302D;
  --color-900: #201E1D;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  onyx: {
    50: '#F8F7F6',
    100: '#EDEAE8',
    200: '#DBD5D1',
    300: '#C0B6AF',
    400: '#A4988E',
    500: '#86796F',
    600: '#696059',
    700: '#4D4742',
    800: '#34302D',
    900: '#201E1D',
  },
}

$base: #3F3731;
$base-ink: #FFFFFF;
$base-50: #F8F7F6;
$base-100: #EDEAE8;
$base-200: #DBD5D1;
$base-300: #C0B6AF;
$base-400: #A4988E;
$base-500: #86796F;
$base-600: #696059;
$base-700: #4D4742;
$base-800: #34302D;
$base-900: #201E1D;
$base-hover: #332C27;
$base-subtle: #C9C3BD;

{
    "color": {
        "base": {
            "value": "#3F3731",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F8F7F6",
                "type": "color"
            },
            "100": {
                "value": "#EDEAE8",
                "type": "color"
            },
            "200": {
                "value": "#DBD5D1",
                "type": "color"
            },
            "300": {
                "value": "#C0B6AF",
                "type": "color"
            },
            "400": {
                "value": "#A4988E",
                "type": "color"
            },
            "500": {
                "value": "#86796F",
                "type": "color"
            },
            "600": {
                "value": "#696059",
                "type": "color"
            },
            "700": {
                "value": "#4D4742",
                "type": "color"
            },
            "800": {
                "value": "#34302D",
                "type": "color"
            },
            "900": {
                "value": "#201E1D",
                "type": "color"
            }
        }
    }
}