What color is #2A3537?

#2A3537 is a dark low-chroma cool gray with a subtle cool cast. In RGB it is rgb(42, 53, 55), and in HSL hsl(189, 13%, 19%).

Is #2A3537 accessible as text?

On white, #2A3537 has a contrast ratio of 12.63:1 (passes WCAG AA for body text); on black it is 1.66:1 (fails). For text placed on #2A3537, use white for the best readability.

What is the closest Tailwind color to #2A3537?

The nearest Tailwind CSS token is zinc-800 (#27272A).

What colors go well with #2A3537?

As a neutral, #2A3537 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 #2A3537 the same as CSS darkslategray?

No — #2A3537 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.

#2A3537 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #2A3537

Not just a swatch — here's how #2A3537 works with other colors. Named schemes with #2A3537 in its natural role, and a note on why the supporting colors balance it.

Tech Product Signal · 5 colors

Signal #2A3537 Surface #14161A Highlight #F4F6F8 Secondary #596671 Accent #4A5557

Gunmetal 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 Gunmetal Gray.

Vintage Leather Lead · 5 colors

Lead #2A3537 Secondary #705117 Surface #E3DCC0 Accent #395143 Anchor #56233F

Gunmetal 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.

Japanese Sand Base · 5 colors

Base #2A3537 Surface #ECEADC Highlight #F4F2E7 Secondary #B4B19F Ink #2A2723

Gunmetal Gray 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.

Coastal Morning Lead · 5 colors

Lead #2A3537 Accent #A6C4BE Surface #DFDABE Secondary #9AA0A0 Anchor #1D3549

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

Minimal Editorial Surface · 5 colors

Surface #F6F4EF Accent #2A3537 Secondary #555959 Support #979286 Ink #16140F

Gunmetal 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 Gunmetal Gray carrying the quiet middle.

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Color Lab

How #2A3537 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 46/100

Neutral

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

Softness 35/100

Low

Middle-weight — neither delicate nor heavy.

Depth 63/100

High

Deep and grounding — anchors a layout, strong dark-mode base.

Naturalness 1/100

Very low

Reads engineered rather than organic — synthetic, digital.

Vintage feel 24/100

Low

Clean and current — no dusty, aged cast.

Luxury 65/100

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 25/100

Low

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

Surface fit 60/100

Moderate

Usable as a tinted surface in measured doses.

Print safety 96/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #2A3537

For UI

For branding

For interior

For fashion

People also use #2A3537 with

Dark Slate Gray Gunmetal Gray Bistre Platinum Outer Space

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 12.6:1. Use

Subtle surface Use #D2D8DA for cards and hover fills. Tint 80

Avoid beside #2A3137 — 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 #2A3537 at work across the surfaces designers actually ship.

Website / UI

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Build faster.

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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: #2A3537;
  --color-base-rgb: 42 53 55;
  --color-base-oklch: oklch(32.0% 0.015 209.8);
  --color-50: #F6F8F8;
  --color-100: #E8EDED;
  --color-200: #D1DADB;
  --color-300: #AFBDC0;
  --color-400: #8EA1A4;
  --color-500: #6F8286;
  --color-600: #596769;
  --color-700: #424B4D;
  --color-800: #2D3334;
  --color-900: #1D2020;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  gunmetal-gray: {
    50: '#F6F8F8',
    100: '#E8EDED',
    200: '#D1DADB',
    300: '#AFBDC0',
    400: '#8EA1A4',
    500: '#6F8286',
    600: '#596769',
    700: '#424B4D',
    800: '#2D3334',
    900: '#1D2020',
  },
}

$base: #2A3537;
$base-ink: #FFFFFF;
$base-50: #F6F8F8;
$base-100: #E8EDED;
$base-200: #D1DADB;
$base-300: #AFBDC0;
$base-400: #8EA1A4;
$base-500: #6F8286;
$base-600: #596769;
$base-700: #424B4D;
$base-800: #2D3334;
$base-900: #1D2020;
$base-hover: #222A2C;
$base-subtle: #BBC5C7;

{
    "color": {
        "base": {
            "value": "#2A3537",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F6F8F8",
                "type": "color"
            },
            "100": {
                "value": "#E8EDED",
                "type": "color"
            },
            "200": {
                "value": "#D1DADB",
                "type": "color"
            },
            "300": {
                "value": "#AFBDC0",
                "type": "color"
            },
            "400": {
                "value": "#8EA1A4",
                "type": "color"
            },
            "500": {
                "value": "#6F8286",
                "type": "color"
            },
            "600": {
                "value": "#596769",
                "type": "color"
            },
            "700": {
                "value": "#424B4D",
                "type": "color"
            },
            "800": {
                "value": "#2D3334",
                "type": "color"
            },
            "900": {
                "value": "#1D2020",
                "type": "color"
            }
        }
    }
}