What color is #374C4E?

#374C4E is a dark low-chroma cool gray with a subtle cool cast. In RGB it is rgb(55, 76, 78), and in HSL hsl(185, 17%, 26%).

Is #374C4E accessible as text?

On white, #374C4E has a contrast ratio of 9.11:1 (passes WCAG AA for body text); on black it is 2.31:1 (fails). For text placed on #374C4E, use white for the best readability.

What is the closest Tailwind color to #374C4E?

The nearest Tailwind CSS token is neutral-700 (#404040).

What colors go well with #374C4E?

As a neutral, #374C4E 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 #374C4E the same as CSS darkslategray?

No — #374C4E 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.

#374C4E Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #374C4E

Not just a swatch — here's how #374C4E works with other colors. Named schemes with #374C4E in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #374C4E 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 #374C4E 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 #374C4E Surface #14161A Highlight #F4F6F8 Secondary #596771 Accent #596D6F

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 #374C4E Secondary #715017 Surface #E3DCC0 Accent #395143 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.

Minimal Editorial Surface · 5 colors

Surface #F6F4EF Accent #374C4E Secondary #697071 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 #374C4E 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 43/100

Neutral

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

Softness 41/100

Moderate

Middle-weight — neither delicate nor heavy.

Depth 56/100

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 32/100

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 10/100

Very low

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

UI accent fit 44/100

Moderate

Workable accent with care around contrast.

Surface fit 51/100

Moderate

Usable as a tinted surface in measured doses.

Print safety 93/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #374C4E

For UI

For branding

For interior

For fashion

People also use #374C4E with

Feldgrau 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 9.1:1. Use

Subtle surface Use #D5DDDE for cards and hover fills. Tint 80

Avoid beside #37444E — 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 #374C4E 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: #374C4E;
  --color-base-rgb: 55 76 78;
  --color-base-oklch: oklch(40.0% 0.026 203.5);
  --color-50: #F6F9F9;
  --color-100: #E7EEEE;
  --color-200: #CFDCDD;
  --color-300: #ADC1C3;
  --color-400: #8BA5A7;
  --color-500: #6B8789;
  --color-600: #566A6B;
  --color-700: #414D4E;
  --color-800: #2C3435;
  --color-900: #1C2121;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  dark-slate-gray: {
    50: '#F6F9F9',
    100: '#E7EEEE',
    200: '#CFDCDD',
    300: '#ADC1C3',
    400: '#8BA5A7',
    500: '#6B8789',
    600: '#566A6B',
    700: '#414D4E',
    800: '#2C3435',
    900: '#1C2121',
  },
}

$base: #374C4E;
$base-ink: #FFFFFF;
$base-50: #F6F9F9;
$base-100: #E7EEEE;
$base-200: #CFDCDD;
$base-300: #ADC1C3;
$base-400: #8BA5A7;
$base-500: #6B8789;
$base-600: #566A6B;
$base-700: #414D4E;
$base-800: #2C3435;
$base-900: #1C2121;
$base-hover: #2C3D3E;
$base-subtle: #BFCCCE;

{
    "color": {
        "base": {
            "value": "#374C4E",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F6F9F9",
                "type": "color"
            },
            "100": {
                "value": "#E7EEEE",
                "type": "color"
            },
            "200": {
                "value": "#CFDCDD",
                "type": "color"
            },
            "300": {
                "value": "#ADC1C3",
                "type": "color"
            },
            "400": {
                "value": "#8BA5A7",
                "type": "color"
            },
            "500": {
                "value": "#6B8789",
                "type": "color"
            },
            "600": {
                "value": "#566A6B",
                "type": "color"
            },
            "700": {
                "value": "#414D4E",
                "type": "color"
            },
            "800": {
                "value": "#2C3435",
                "type": "color"
            },
            "900": {
                "value": "#1C2121",
                "type": "color"
            }
        }
    }
}

Palettes built on #374C4E

Color Lab

Pairs with #374C4E

UI roles & guardrails

In real applications

Scales

Every model

Export