What color is #2D4E53?

#2D4E53 is a dark, muted cyan. In RGB it is rgb(45, 78, 83), and in HSL hsl(188, 30%, 25%).

Is #2D4E53 accessible as text?

On white, #2D4E53 has a contrast ratio of 9.03:1 (passes WCAG AA for body text); on black it is 2.33:1 (fails). For text placed on #2D4E53, use white for the best readability.

What is the closest Tailwind color to #2D4E53?

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

What colors go well with #2D4E53?

#2D4E53 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #53322D. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #2D4E53 below.

Is #2D4E53 good for buttons?

#2D4E53 works well for buttons and highlights, but use white text on #2D4E53 — black text only reaches 2.33:1, below the 4.5:1 needed for normal-size labels.

Is #2D4E53 the same as CSS darkslategray?

No — #2D4E53 is not the CSS named color darkslategray, but darkslategray (#2F4F4F) is the closest CSS named color.

#2D4E53 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #2D4E53

Not just a swatch — here's how #2D4E53 works with other colors. Named schemes with #2D4E53 in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #2D4E53 Accent #A6C4BE Surface #DFDABE 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 #2D4E53 Secondary #AEB4B8 Surface #F1F2F0 Support #7A94A5 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 #2D4E53 Surface #14161A Highlight #F4F6F8 Secondary #596671 Accent #516F74

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 #2D4E53 Secondary #715117 Surface #E3DCC0 Accent #395143 Anchor #56233F

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 #2D4E53 Secondary #667173 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.

Build a working theme in the generator →

Color Lab

How #2D4E53 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 39/100

Neutral

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

Softness 40/100

Moderate

Middle-weight — neither delicate nor heavy.

Depth 57/100

Moderate

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

Naturalness 3/100

Very low

Reads engineered rather than organic — synthetic, digital.

Vintage feel 35/100

Low

A faint retro warmth without tipping into sepia.

Luxury 61/100

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 89/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #2D4E53

For UI

For branding

For interior

For fashion

People also use #2D4E53 with

Myrtle Green Gunmetal Gray Espresso 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 9.0:1. Use

Subtle surface Use #D0DFE1 for cards and hover fills. Tint 80

Avoid beside #2D4153 — 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 #2D4E53 at work across the surfaces designers actually ship.

Website / UI

Northwind Sign up

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: #2D4E53;
  --color-base-rgb: 45 78 83;
  --color-base-oklch: oklch(40.1% 0.039 208.0);
  --color-50: #F5F9FA;
  --color-100: #E4EFF1;
  --color-200: #CADFE2;
  --color-300: #A4C6CB;
  --color-400: #80ABB2;
  --color-500: #608E95;
  --color-600: #4E6F74;
  --color-700: #3B5054;
  --color-800: #293638;
  --color-900: #1B2223;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  dark-slate-gray: {
    50: '#F5F9FA',
    100: '#E4EFF1',
    200: '#CADFE2',
    300: '#A4C6CB',
    400: '#80ABB2',
    500: '#608E95',
    600: '#4E6F74',
    700: '#3B5054',
    800: '#293638',
    900: '#1B2223',
  },
}

$base: #2D4E53;
$base-ink: #FFFFFF;
$base-50: #F5F9FA;
$base-100: #E4EFF1;
$base-200: #CADFE2;
$base-300: #A4C6CB;
$base-400: #80ABB2;
$base-500: #608E95;
$base-600: #4E6F74;
$base-700: #3B5054;
$base-800: #293638;
$base-900: #1B2223;
$base-hover: #243E42;
$base-subtle: #B9CFD3;

{
    "color": {
        "base": {
            "value": "#2D4E53",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F5F9FA",
                "type": "color"
            },
            "100": {
                "value": "#E4EFF1",
                "type": "color"
            },
            "200": {
                "value": "#CADFE2",
                "type": "color"
            },
            "300": {
                "value": "#A4C6CB",
                "type": "color"
            },
            "400": {
                "value": "#80ABB2",
                "type": "color"
            },
            "500": {
                "value": "#608E95",
                "type": "color"
            },
            "600": {
                "value": "#4E6F74",
                "type": "color"
            },
            "700": {
                "value": "#3B5054",
                "type": "color"
            },
            "800": {
                "value": "#293638",
                "type": "color"
            },
            "900": {
                "value": "#1B2223",
                "type": "color"
            }
        }
    }
}

Palettes built on #2D4E53

Color Lab

Pairs with #2D4E53

UI roles & guardrails

In real applications

Scales

Every model

Export