What color is #3F270F?

#3F270F is a very dark brown. In RGB it is rgb(63, 39, 15), and in HSL hsl(30, 62%, 15%).

Is #3F270F accessible as text?

On white, #3F270F has a contrast ratio of 13.92:1 (passes WCAG AA for body text); on black it is 1.51:1 (fails). For text placed on #3F270F, use white for the best readability.

What is the closest Tailwind color to #3F270F?

The nearest Tailwind CSS token is yellow-950 (#432004).

What colors go well with #3F270F?

#3F270F pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #0F263E. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #3F270F below.

Is #3F270F good for buttons?

#3F270F works well for buttons and highlights, but use white text on #3F270F — black text only reaches 1.51:1, below the 4.5:1 needed for normal-size labels.

Is #3F270F the same as CSS darkslategray?

No — #3F270F 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.

#3F270F Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #3F270F

Not just a swatch — here's how #3F270F works with other colors. Named schemes with #3F270F in its natural role, and a note on why the supporting colors balance it.

Warm Autumn Interior Dominant · 5 colors

Dominant #3F270F Secondary #B4651B Accent #737945 Surface #F4ECDD 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 #3F270F Secondary #7A4A23 Surface #E9DAC0 Accent #41503C 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 #3F270F Surface #E1CEA8 Secondary #B07A54 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 #3F270F Surface #EFE9DC Highlight #F6F1E7 Secondary #BAAF9F 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 #3F270F Secondary #595048 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 #3F270F 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 65/100

Warm

Reads warm and advancing — inviting, energetic, draws the eye forward.

Softness 30/100

Low

Firm and assertive — carries weight and contrast.

Depth 67/100

High

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

Naturalness 61/100

High

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

Vintage feel 49/100

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 20/100

Very low

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

UI accent fit 28/100

Low

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

Surface fit 50/100

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 #3F270F

For UI

For branding

For interior

For fashion

People also use #3F270F with

Rosewood Espresso Prussian Blue Greige 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 13.9:1. Use

Subtle surface Use #E7D4C0 for cards and hover fills. Tint 80

Avoid beside #3E360F — 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 #3F270F 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: #3F270F;
  --color-base-rgb: 63 39 15;
  --color-base-oklch: oklch(29.7% 0.051 63.4);
  --color-50: #FDF7F2;
  --color-100: #F8EBDD;
  --color-200: #EFD6BD;
  --color-300: #E0B890;
  --color-400: #CC9966;
  --color-500: #B17A44;
  --color-600: #87613A;
  --color-700: #60472E;
  --color-800: #3F3022;
  --color-900: #271F16;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  bistre: {
    50: '#FDF7F2',
    100: '#F8EBDD',
    200: '#EFD6BD',
    300: '#E0B890',
    400: '#CC9966',
    500: '#B17A44',
    600: '#87613A',
    700: '#60472E',
    800: '#3F3022',
    900: '#271F16',
  },
}

$base: #3F270F;
$base-ink: #FFFFFF;
$base-50: #FDF7F2;
$base-100: #F8EBDD;
$base-200: #EFD6BD;
$base-300: #E0B890;
$base-400: #CC9966;
$base-500: #B17A44;
$base-600: #87613A;
$base-700: #60472E;
$base-800: #3F3022;
$base-900: #271F16;
$base-hover: #321F0C;
$base-subtle: #DDBE9F;

{
    "color": {
        "base": {
            "value": "#3F270F",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#FDF7F2",
                "type": "color"
            },
            "100": {
                "value": "#F8EBDD",
                "type": "color"
            },
            "200": {
                "value": "#EFD6BD",
                "type": "color"
            },
            "300": {
                "value": "#E0B890",
                "type": "color"
            },
            "400": {
                "value": "#CC9966",
                "type": "color"
            },
            "500": {
                "value": "#B17A44",
                "type": "color"
            },
            "600": {
                "value": "#87613A",
                "type": "color"
            },
            "700": {
                "value": "#60472E",
                "type": "color"
            },
            "800": {
                "value": "#3F3022",
                "type": "color"
            },
            "900": {
                "value": "#271F16",
                "type": "color"
            }
        }
    }
}

Palettes built on #3F270F

Color Lab

Pairs with #3F270F

UI roles & guardrails

In real applications

Scales

Every model

Export