What color is #2F4F4F?

Dark Slate Gray (#2F4F4F) is a dark, muted cyan. In RGB it is rgb(47, 79, 79), and in HSL hsl(180, 25%, 25%).

Is #2F4F4F accessible as text?

On white, #2F4F4F has a contrast ratio of 8.93:1 (passes WCAG AA for body text); on black it is 2.35:1 (fails). For text placed on #2F4F4F, use white for the best readability.

What is the closest Tailwind color to #2F4F4F?

The nearest Tailwind CSS token is teal-900 (#0B4F4A).

What colors go well with #2F4F4F?

#2F4F4F pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #503030. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #2F4F4F below.

Is Dark Slate Gray good for buttons?

Dark Slate Gray works well for buttons and highlights, but use white text on #2F4F4F — black text only reaches 2.35:1, below the 4.5:1 needed for normal-size labels.

Is Dark Slate Gray the same as CSS darkslategray?

Yes — #2F4F4F is the CSS named color darkslategray.

Dark Slate Gray / Dark Slate Grey (#2F4F4F) Color Palette, HEX, RGB & Design Ideas

Palettes built on Dark Slate Gray

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

Coastal Morning Lead · 5 colors

Lead #2F4F4F Accent #A6C4BD Surface #E0DABE Secondary #9AA0A0 Anchor #1D3549

Dark Slate Gray opens this coastal palette with sea-glass and warm sand alongside it, grounded by driftwood grey and a deep-navy anchor.

Nordic Calm Accent · 5 colors

Accent #2F4F4F Secondary #AEB4B8 Surface #F1F2F0 Support #7A94A4 Anchor #2E3236

Dark Slate Gray keeps this Nordic scheme quiet — cool greys and a soft white around it, a muted-blue support and a charcoal anchor.

Vintage Leather Lead · 5 colors

Lead #2F4F4F Secondary #725018 Surface #E4DCC0 Accent #3A5142 Anchor #552340

Dark Slate Gray 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 #2F4F4F Anchor #382C1E Surface #ECE4D0 Accent #809C72 Secondary #3A3933

Dark Slate Gray 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.

Minimal Editorial Surface · 5 colors

Surface #F6F4EF Accent #2F4F4F Secondary #677272 Support #979286 Ink #16140F

Dark Slate Gray 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 Dark Slate Gray carrying the quiet middle.

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Color Lab

How Dark Slate Gray 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 41/100

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 7/100

Very low

Reads engineered rather than organic — synthetic, digital.

Vintage feel 36/100

Low

A faint retro warmth without tipping into sepia.

Luxury 60/100

High

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

Brand distinctiveness 15/100

Very low

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

UI accent fit 49/100

Moderate

Workable accent with care around contrast.

Surface fit 47/100

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 Dark Slate Gray

For UI

For branding

For interior

For fashion

People also use Dark Slate Gray with

Feldgrau Charcoal Espresso Platinum

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 8.9:1. Use

Subtle surface Use #D2E0E0 for cards and hover fills. Tint 80

Avoid beside #304550 — 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 Dark Slate Gray at work across the surfaces designers actually ship.

Website / UI

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:root {
  --color-base: #2F4F4F;
  --color-base-rgb: 47 79 79;
  --color-base-oklch: oklch(40.3% 0.038 195.8);
  --color-50: #F5F9F9;
  --color-100: #E5F0F0;
  --color-200: #CCE0E0;
  --color-300: #A7C8C8;
  --color-400: #84AEAE;
  --color-500: #649090;
  --color-600: #517070;
  --color-700: #3D5151;
  --color-800: #2A3636;
  --color-900: #1B2222;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  dark-slate-gray: {
    50: '#F5F9F9',
    100: '#E5F0F0',
    200: '#CCE0E0',
    300: '#A7C8C8',
    400: '#84AEAE',
    500: '#649090',
    600: '#517070',
    700: '#3D5151',
    800: '#2A3636',
    900: '#1B2222',
  },
}

$base: #2F4F4F;
$base-ink: #FFFFFF;
$base-50: #F5F9F9;
$base-100: #E5F0F0;
$base-200: #CCE0E0;
$base-300: #A7C8C8;
$base-400: #84AEAE;
$base-500: #649090;
$base-600: #517070;
$base-700: #3D5151;
$base-800: #2A3636;
$base-900: #1B2222;
$base-hover: #264040;
$base-subtle: #BBD1D1;

{
    "color": {
        "base": {
            "value": "#2F4F4F",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F5F9F9",
                "type": "color"
            },
            "100": {
                "value": "#E5F0F0",
                "type": "color"
            },
            "200": {
                "value": "#CCE0E0",
                "type": "color"
            },
            "300": {
                "value": "#A7C8C8",
                "type": "color"
            },
            "400": {
                "value": "#84AEAE",
                "type": "color"
            },
            "500": {
                "value": "#649090",
                "type": "color"
            },
            "600": {
                "value": "#517070",
                "type": "color"
            },
            "700": {
                "value": "#3D5151",
                "type": "color"
            },
            "800": {
                "value": "#2A3636",
                "type": "color"
            },
            "900": {
                "value": "#1B2222",
                "type": "color"
            }
        }
    }
}

Palettes built on Dark Slate Gray

Color Lab

Pairs with Dark Slate Gray

UI roles & guardrails

In real applications

Scales

Every model

Export