What color is #39353D?

#39353D is a dark low-chroma blue-gray with a subtle blue cast. In RGB it is rgb(57, 53, 61), and in HSL hsl(270, 7%, 22%).

Is #39353D accessible as text?

On white, #39353D has a contrast ratio of 12.00:1 (passes WCAG AA for body text); on black it is 1.75:1 (fails). For text placed on #39353D, use white for the best readability.

What is the closest Tailwind color to #39353D?

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

What colors go well with #39353D?

As a neutral, #39353D 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 #39353D the same as CSS darkslategray?

No — #39353D 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.

#39353D Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #39353D

Not just a swatch — here's how #39353D works with other colors. Named schemes with #39353D in its natural role, and a note on why the supporting colors balance it.

Tech Product Signal · 5 colors

Signal #39353D Surface #14161A Highlight #F4F6F8 Secondary #5C6573 Accent #59555D

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 #39353D Secondary #7E4631 Surface #EDD8C1 Accent #355249 Anchor #592236

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 #39353D Surface #F2E8DC Highlight #F8F0E7 Secondary #BDADA1 Ink #2C2723

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.

Berry & Cream Lead · 5 colors

Lead #39353D Surface #F5E6D7 Anchor #5C213F Accent #E5C2C7 Secondary #332B2F

Onyx sits between cream and a deep berry here, softened by a blush accent and grounded by charcoal.

Minimal Editorial Surface · 5 colors

Surface #F8F4EF Accent #39353D Secondary #5D5C5F Support #9C9088 Ink #18140F

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 #39353D 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 49/100

Neutral

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

Softness 36/100

Low

Middle-weight — neither delicate nor heavy.

Depth 62/100

High

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

Naturalness 0/100

Very low

Reads engineered rather than organic — synthetic, digital.

Vintage feel 31/100

Low

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 27/100

Low

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

Surface fit 59/100

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 #39353D

For UI

For branding

For interior

For fashion

People also use #39353D with

Outer Space Onyx Gainsboro Charcoal

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 12.0:1. Use

Subtle surface Use #D7D5D9 for cards and hover fills. Tint 80

Avoid beside #3B343C — 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 #39353D 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: #39353D;
  --color-base-rgb: 57 53 61;
  --color-base-oklch: oklch(33.6% 0.015 308.0);
  --color-50: #F7F7F8;
  --color-100: #EBE9EC;
  --color-200: #D6D3D9;
  --color-300: #B8B3BC;
  --color-400: #99939F;
  --color-500: #7A7481;
  --color-600: #615D65;
  --color-700: #47454A;
  --color-800: #302F32;
  --color-900: #1F1D20;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  onyx: {
    50: '#F7F7F8',
    100: '#EBE9EC',
    200: '#D6D3D9',
    300: '#B8B3BC',
    400: '#99939F',
    500: '#7A7481',
    600: '#615D65',
    700: '#47454A',
    800: '#302F32',
    900: '#1F1D20',
  },
}

$base: #39353D;
$base-ink: #FFFFFF;
$base-50: #F7F7F8;
$base-100: #EBE9EC;
$base-200: #D6D3D9;
$base-300: #B8B3BC;
$base-400: #99939F;
$base-500: #7A7481;
$base-600: #615D65;
$base-700: #47454A;
$base-800: #302F32;
$base-900: #1F1D20;
$base-hover: #2D2A30;
$base-subtle: #C3C0C7;

{
    "color": {
        "base": {
            "value": "#39353D",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F7F7F8",
                "type": "color"
            },
            "100": {
                "value": "#EBE9EC",
                "type": "color"
            },
            "200": {
                "value": "#D6D3D9",
                "type": "color"
            },
            "300": {
                "value": "#B8B3BC",
                "type": "color"
            },
            "400": {
                "value": "#99939F",
                "type": "color"
            },
            "500": {
                "value": "#7A7481",
                "type": "color"
            },
            "600": {
                "value": "#615D65",
                "type": "color"
            },
            "700": {
                "value": "#47454A",
                "type": "color"
            },
            "800": {
                "value": "#302F32",
                "type": "color"
            },
            "900": {
                "value": "#1F1D20",
                "type": "color"
            }
        }
    }
}