What color is #403701?

#403701 is a very dark, vivid amber. In RGB it is rgb(64, 55, 1), and in HSL hsl(51, 97%, 13%).

Is #403701 accessible as text?

On white, #403701 has a contrast ratio of 11.90:1 (passes WCAG AA for body text); on black it is 1.76:1 (fails). For text placed on #403701, use white for the best readability.

What is the closest Tailwind color to #403701?

The nearest Tailwind CSS token is taupe-700 (#473C39).

What colors go well with #403701?

#403701 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #010B41. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #403701 below.

Is #403701 good for buttons?

#403701 works well for buttons and highlights, but use white text on #403701 — black text only reaches 1.76:1, below the 4.5:1 needed for normal-size labels.

Is #403701 the same as CSS darkslategray?

No — #403701 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.

#403701 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #403701

Not just a swatch — here's how #403701 works with other colors. Named schemes with #403701 in its natural role, and a note on why the supporting colors balance it.

Warm Autumn Interior Dominant · 5 colors

Dominant #403701 Secondary #B2680E Accent #6E7A48 Surface #F3ECDD Anchor #3A2A1F

This palette keeps Espresso 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 #403701 Secondary #784C20 Surface #E7DAC0 Accent #3F503D Anchor #5B2227

Espresso plays the worn-leather lead, deepened by saddle brown and an oxblood anchor, softened by aged cream and cooled by a muted forest green.

Botanical Studio Lead · 5 colors

Lead #403701 Secondary #536A36 Accent #B2680E Surface #F0E9D6 Anchor #3D2E21

Espresso leads this botanical set among foliage greens and a terracotta accent, softened by cream and grounded in bark brown.

Desert Clay Center · 5 colors

Center #403701 Surface #DFCFA8 Secondary #AD7C51 Accent #909971 Anchor #3D2D1F

Espresso holds the warm center of this desert palette with sand and clay beside it, a muted-sage accent and a dark-brown anchor.

Minimal Editorial Surface · 5 colors

Surface #F7F4EF Accent #403701 Secondary #605D4E Support #999186 Ink #17140F

Espresso 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 Espresso carrying the quiet middle.

Build a working theme in the generator →

Color Lab

How #403701 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 63/100

Warm

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

Softness 32/100

Low

Middle-weight — neither delicate nor heavy.

Depth 65/100

High

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

Naturalness 75/100

High

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

Vintage feel 56/100

Moderate

Faded, nostalgic quality — editorial, heritage and retro work.

Luxury 68/100

High

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

Brand distinctiveness 27/100

Low

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

UI accent fit 42/100

Moderate

Workable accent with care around contrast.

Surface fit 42/100

Moderate

Usable as a tinted surface in measured doses.

Print safety 89/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #403701

For UI

For branding

For interior

For fashion

People also use #403701 with

Rosewood British Racing Green Navy Greige Army Green

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 11.9:1. Use

Subtle surface Use #F2E8B4 for cards and hover fills. Tint 80

Avoid beside #364101 — 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 #403701 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: #403701;
  --color-base-rgb: 64 55 1;
  --color-base-oklch: oklch(33.6% 0.069 98.9);
  --color-50: #FEFCF0;
  --color-100: #FDF8D8;
  --color-200: #FCF0B1;
  --color-300: #F6E379;
  --color-400: #E9D149;
  --color-500: #D0B625;
  --color-600: #9D8B25;
  --color-700: #6F6320;
  --color-800: #484119;
  --color-900: #2C2811;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  espresso: {
    50: '#FEFCF0',
    100: '#FDF8D8',
    200: '#FCF0B1',
    300: '#F6E379',
    400: '#E9D149',
    500: '#D0B625',
    600: '#9D8B25',
    700: '#6F6320',
    800: '#484119',
    900: '#2C2811',
  },
}

$base: #403701;
$base-ink: #FFFFFF;
$base-50: #FEFCF0;
$base-100: #FDF8D8;
$base-200: #FCF0B1;
$base-300: #F6E379;
$base-400: #E9D149;
$base-500: #D0B625;
$base-600: #9D8B25;
$base-700: #6F6320;
$base-800: #484119;
$base-900: #2C2811;
$base-hover: #342D01;
$base-subtle: #EEDF8B;

{
    "color": {
        "base": {
            "value": "#403701",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#FEFCF0",
                "type": "color"
            },
            "100": {
                "value": "#FDF8D8",
                "type": "color"
            },
            "200": {
                "value": "#FCF0B1",
                "type": "color"
            },
            "300": {
                "value": "#F6E379",
                "type": "color"
            },
            "400": {
                "value": "#E9D149",
                "type": "color"
            },
            "500": {
                "value": "#D0B625",
                "type": "color"
            },
            "600": {
                "value": "#9D8B25",
                "type": "color"
            },
            "700": {
                "value": "#6F6320",
                "type": "color"
            },
            "800": {
                "value": "#484119",
                "type": "color"
            },
            "900": {
                "value": "#2C2811",
                "type": "color"
            }
        }
    }
}

Palettes built on #403701

Color Lab

Pairs with #403701

UI roles & guardrails

In real applications

Scales

Every model

Export