What color is #404348?

#404348 is a dark low-chroma blue-gray with a subtle blue cast. In RGB it is rgb(64, 67, 72), and in HSL hsl(218, 6%, 27%).

Is #404348 accessible as text?

On white, #404348 has a contrast ratio of 9.93:1 (passes WCAG AA for body text); on black it is 2.11:1 (fails). For text placed on #404348, use white for the best readability.

What is the closest Tailwind color to #404348?

The nearest Tailwind CSS token is zinc-700 (#3F3F46).

What colors go well with #404348?

As a neutral, #404348 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 #404348 the same as CSS darkslategray?

No — #404348 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.

#404348 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #404348

Not just a swatch — here's how #404348 works with other colors. Named schemes with #404348 in its natural role, and a note on why the supporting colors balance it.

Tech Product Signal · 5 colors

Signal #404348 Surface #14161A Highlight #F4F6F8 Secondary #5A6672 Accent #616469

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

Vintage Leather Lead · 5 colors

Lead #404348 Secondary #7F4536 Surface #E1DDC1 Accent #375246 Anchor #57223A

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

Modern Café Dominant · 5 colors

Dominant #404348 Anchor #3B2924 Surface #F3E1D2 Accent #789E79 Secondary #3D3734

Charcoal anchors this café scheme as the warm mid-tone, lifted by latte cream and a muted sage accent and grounded by espresso brown and a warm charcoal.

Japanese Sand Base · 5 colors

Base #404348 Surface #EBEADC Highlight #F4F2E7 Secondary #BEACA2 Ink #2C2724

Charcoal 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 #F8F4EF Accent #404348 Secondary #68696B Support #9D8F88 Ink #18140F

Charcoal 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 Charcoal carrying the quiet middle.

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Color Lab

How #404348 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 48/100

Neutral

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

Softness 41/100

Moderate

Middle-weight — neither delicate nor heavy.

Depth 57/100

Moderate

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

Naturalness 0/100

Very low

Reads engineered rather than organic — synthetic, digital.

Vintage feel 27/100

Low

A faint retro warmth without tipping into sepia.

Luxury 60/100

Moderate

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

Brand distinctiveness 4/100

Very low

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

UI accent fit 34/100

Low

Workable accent with care around contrast.

Surface fit 57/100

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 #404348

For UI

For branding

For interior

For fashion

People also use #404348 with

Feldgrau Charcoal Outer Space 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 9.9:1. Use

Subtle surface Use #D8D9DB for cards and hover fills. Tint 80

Avoid beside #414149 — 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 #404348 at work across the surfaces designers actually ship.

Website / UI

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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: #404348;
  --color-base-rgb: 64 67 72;
  --color-base-oklch: oklch(38.2% 0.009 260.7);
  --color-50: #F7F7F8;
  --color-100: #E9EAEC;
  --color-200: #D4D6D9;
  --color-300: #B4B7BB;
  --color-400: #94989E;
  --color-500: #757980;
  --color-600: #5D6065;
  --color-700: #45474A;
  --color-800: #2F3032;
  --color-900: #1D1E20;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  charcoal: {
    50: '#F7F7F8',
    100: '#E9EAEC',
    200: '#D4D6D9',
    300: '#B4B7BB',
    400: '#94989E',
    500: '#757980',
    600: '#5D6065',
    700: '#45474A',
    800: '#2F3032',
    900: '#1D1E20',
  },
}

$base: #404348;
$base-ink: #FFFFFF;
$base-50: #F7F7F8;
$base-100: #E9EAEC;
$base-200: #D4D6D9;
$base-300: #B4B7BB;
$base-400: #94989E;
$base-500: #757980;
$base-600: #5D6065;
$base-700: #45474A;
$base-800: #2F3032;
$base-900: #1D1E20;
$base-hover: #34363A;
$base-subtle: #C5C6CA;

{
    "color": {
        "base": {
            "value": "#404348",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F7F7F8",
                "type": "color"
            },
            "100": {
                "value": "#E9EAEC",
                "type": "color"
            },
            "200": {
                "value": "#D4D6D9",
                "type": "color"
            },
            "300": {
                "value": "#B4B7BB",
                "type": "color"
            },
            "400": {
                "value": "#94989E",
                "type": "color"
            },
            "500": {
                "value": "#757980",
                "type": "color"
            },
            "600": {
                "value": "#5D6065",
                "type": "color"
            },
            "700": {
                "value": "#45474A",
                "type": "color"
            },
            "800": {
                "value": "#2F3032",
                "type": "color"
            },
            "900": {
                "value": "#1D1E20",
                "type": "color"
            }
        }
    }
}

Palettes built on #404348

Color Lab

Pairs with #404348

UI roles & guardrails

In real applications

Scales

Every model

Export