What color is #2F545D?

#2F545D is a dark, muted cyan. In RGB it is rgb(47, 84, 93), and in HSL hsl(192, 33%, 27%).

Is #2F545D accessible as text?

On white, #2F545D has a contrast ratio of 8.24:1 (passes WCAG AA for body text); on black it is 2.55:1 (fails). For text placed on #2F545D, use white for the best readability.

What is the closest Tailwind color to #2F545D?

The nearest Tailwind CSS token is cyan-900 (#104E64).

What colors go well with #2F545D?

#2F545D pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #5C372E. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #2F545D below.

Is #2F545D good for buttons?

#2F545D works well for buttons and highlights, but use white text on #2F545D — black text only reaches 2.55:1, below the 4.5:1 needed for normal-size labels.

Is #2F545D the same as CSS darkslategray?

No — #2F545D is not the CSS named color darkslategray, but darkslategray (#2F4F4F) is the closest CSS named color.

#2F545D Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #2F545D

Not just a swatch — here's how #2F545D works with other colors. Named schemes with #2F545D in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #2F545D Accent #A6C4BE Surface #DFDABE Secondary #9AA0A0 Anchor #1E3549

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 #2F545D Secondary #AEB4B8 Surface #F1F2F0 Support #7B94A5 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.

Tech Product Signal · 5 colors

Signal #2F545D Surface #14161A Highlight #F4F6F8 Secondary #596672 Accent #54767E

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

Vintage Leather Lead · 5 colors

Lead #2F545D Secondary #705116 Surface #E3DCC0 Accent #395143 Anchor #56233E

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.

Minimal Editorial Surface · 5 colors

Surface #F6F4EF Accent #2F545D Secondary #6B787B Support #969386 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.

Build a working theme in the generator →

Color Lab

How #2F545D 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 37/100

Cool

Reads cool and recessive — calming, technical, good for trust-led UI.

Softness 42/100

Moderate

Middle-weight — neither delicate nor heavy.

Depth 55/100

Moderate

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

Naturalness 2/100

Very low

Reads engineered rather than organic — synthetic, digital.

Vintage feel 37/100

Low

A faint retro warmth without tipping into sepia.

Luxury 59/100

Moderate

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

Brand distinctiveness 17/100

Very low

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

UI accent fit 56/100

Moderate

Workable accent with care around contrast.

Surface fit 44/100

Moderate

Usable as a tinted surface in measured doses.

Print safety 88/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #2F545D

For UI

For branding

For interior

For fashion

People also use #2F545D with

Myrtle Green Charcoal Taupe Platinum Dark Slate Gray

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 8.2:1. Use

Subtle surface Use #D1DFE3 for cards and hover fills. Tint 80

Avoid beside #2E435C — 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 #2F545D 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: #2F545D;
  --color-base-rgb: 47 84 93;
  --color-base-oklch: oklch(42.2% 0.045 215.1);
  --color-50: #F5F9FA;
  --color-100: #E3EFF2;
  --color-200: #C9DEE4;
  --color-300: #A2C4CD;
  --color-400: #7EA9B4;
  --color-500: #5D8C97;
  --color-600: #4C6D75;
  --color-700: #3A4F55;
  --color-800: #293538;
  --color-900: #1A2123;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  dark-slate-gray: {
    50: '#F5F9FA',
    100: '#E3EFF2',
    200: '#C9DEE4',
    300: '#A2C4CD',
    400: '#7EA9B4',
    500: '#5D8C97',
    600: '#4C6D75',
    700: '#3A4F55',
    800: '#293538',
    900: '#1A2123',
  },
}

$base: #2F545D;
$base-ink: #FFFFFF;
$base-50: #F5F9FA;
$base-100: #E3EFF2;
$base-200: #C9DEE4;
$base-300: #A2C4CD;
$base-400: #7EA9B4;
$base-500: #5D8C97;
$base-600: #4C6D75;
$base-700: #3A4F55;
$base-800: #293538;
$base-900: #1A2123;
$base-hover: #254249;
$base-subtle: #B9D0D5;

{
    "color": {
        "base": {
            "value": "#2F545D",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F5F9FA",
                "type": "color"
            },
            "100": {
                "value": "#E3EFF2",
                "type": "color"
            },
            "200": {
                "value": "#C9DEE4",
                "type": "color"
            },
            "300": {
                "value": "#A2C4CD",
                "type": "color"
            },
            "400": {
                "value": "#7EA9B4",
                "type": "color"
            },
            "500": {
                "value": "#5D8C97",
                "type": "color"
            },
            "600": {
                "value": "#4C6D75",
                "type": "color"
            },
            "700": {
                "value": "#3A4F55",
                "type": "color"
            },
            "800": {
                "value": "#293538",
                "type": "color"
            },
            "900": {
                "value": "#1A2123",
                "type": "color"
            }
        }
    }
}

Palettes built on #2F545D

Color Lab

Pairs with #2F545D

UI roles & guardrails

In real applications

Scales

Every model

Export