What color is #423403?

#423403 is a very dark, vivid amber. In RGB it is rgb(66, 52, 3), and in HSL hsl(47, 91%, 14%).

Is #423403 accessible as text?

On white, #423403 has a contrast ratio of 12.18:1 (passes WCAG AA for body text); on black it is 1.72:1 (fails). For text placed on #423403, use white for the best readability.

What is the closest Tailwind color to #423403?

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

What colors go well with #423403?

#423403 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #031144. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #423403 below.

Is #423403 good for buttons?

#423403 works well for buttons and highlights, but use white text on #423403 — black text only reaches 1.72:1, below the 4.5:1 needed for normal-size labels.

Is #423403 the same as CSS darkslategray?

No — #423403 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.

#423403 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #423403

Not just a swatch — here's how #423403 works with other colors. Named schemes with #423403 in its natural role, and a note on why the supporting colors balance it.

Warm Autumn Interior Dominant · 5 colors

Dominant #423403 Secondary #B26711 Accent #6F7A47 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 #423403 Secondary #784B20 Surface #E8DAC0 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.

Desert Clay Center · 5 colors

Center #423403 Surface #E0CFA8 Secondary #AE7C52 Accent #919970 Anchor #3D2C1F

Espresso 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 #423403 Surface #EFE9DC Highlight #F6F1E7 Secondary #B9AF9F Ink #2B2723

Espresso 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 #423403 Secondary #605B4D Support #9A9186 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 #423403 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 32/100

Low

Middle-weight — neither delicate nor heavy.

Depth 65/100

High

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

Naturalness 81/100

Very 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 25/100

Low

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

UI accent fit 40/100

Moderate

Workable accent with care around contrast.

Surface fit 44/100

Moderate

Usable as a tinted surface in measured doses.

Print safety 90/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #423403

For UI

For branding

For interior

For fashion

People also use #423403 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 12.2:1. Use

Subtle surface Use #F0E3B6 for cards and hover fills. Tint 80

Avoid beside #3D4403 — 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 #423403 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: #423403;
  --color-base-rgb: 66 52 3;
  --color-base-oklch: oklch(33.1% 0.065 91.4);
  --color-50: #FEFBF0;
  --color-100: #FDF5D8;
  --color-200: #FBEBB1;
  --color-300: #F2D97D;
  --color-400: #E4C44E;
  --color-500: #CBA82A;
  --color-600: #9A8128;
  --color-700: #6C5C23;
  --color-800: #463D1B;
  --color-900: #2B2612;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  espresso: {
    50: '#FEFBF0',
    100: '#FDF5D8',
    200: '#FBEBB1',
    300: '#F2D97D',
    400: '#E4C44E',
    500: '#CBA82A',
    600: '#9A8128',
    700: '#6C5C23',
    800: '#463D1B',
    900: '#2B2612',
  },
}

$base: #423403;
$base-ink: #FFFFFF;
$base-50: #FEFBF0;
$base-100: #FDF5D8;
$base-200: #FBEBB1;
$base-300: #F2D97D;
$base-400: #E4C44E;
$base-500: #CBA82A;
$base-600: #9A8128;
$base-700: #6C5C23;
$base-800: #463D1B;
$base-900: #2B2612;
$base-hover: #372B03;
$base-subtle: #EBD790;

{
    "color": {
        "base": {
            "value": "#423403",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#FEFBF0",
                "type": "color"
            },
            "100": {
                "value": "#FDF5D8",
                "type": "color"
            },
            "200": {
                "value": "#FBEBB1",
                "type": "color"
            },
            "300": {
                "value": "#F2D97D",
                "type": "color"
            },
            "400": {
                "value": "#E4C44E",
                "type": "color"
            },
            "500": {
                "value": "#CBA82A",
                "type": "color"
            },
            "600": {
                "value": "#9A8128",
                "type": "color"
            },
            "700": {
                "value": "#6C5C23",
                "type": "color"
            },
            "800": {
                "value": "#463D1B",
                "type": "color"
            },
            "900": {
                "value": "#2B2612",
                "type": "color"
            }
        }
    }
}

Palettes built on #423403

Color Lab

Pairs with #423403

UI roles & guardrails

In real applications

Scales

Every model

Export