What color is #253646?

#253646 is a dark low-chroma blue-gray with a subtle blue cast. In RGB it is rgb(37, 54, 70), and in HSL hsl(209, 31%, 21%).

Is #253646 accessible as text?

On white, #253646 has a contrast ratio of 12.39:1 (passes WCAG AA for body text); on black it is 1.69:1 (fails). For text placed on #253646, use white for the best readability.

What is the closest Tailwind color to #253646?

The nearest Tailwind CSS token is slate-800 (#1D293D).

What colors go well with #253646?

As a neutral, #253646 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 #253646 the same as CSS darkslategray?

No — #253646 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.

#253646 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #253646

Not just a swatch — here's how #253646 works with other colors. Named schemes with #253646 in its natural role, and a note on why the supporting colors balance it.

Coastal Morning Lead · 5 colors

Lead #253646 Accent #A5C4C0 Surface #DDDBBF Secondary #9AA0A1 Anchor #20344A

Gunmetal 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 #253646 Secondary #AEB4B8 Surface #F1F2F0 Support #7C93A6 Anchor #2E3236

Gunmetal 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 #253646 Surface #14161A Highlight #F4F6F8 Secondary #5A6672 Accent #465665

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 #253646 Secondary #7F4438 Surface #E1DDC0 Accent #375245 Anchor #57233B

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.

Minimal Editorial Surface · 5 colors

Surface #F6F4EF Accent #253646 Secondary #545A60 Support #969386 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 #253646 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 40/100

Neutral

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

Softness 34/100

Low

Middle-weight — neither delicate nor heavy.

Depth 64/100

High

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

Naturalness 0/100

Very low

Reads engineered rather than organic — synthetic, digital.

Vintage feel 29/100

Low

A faint retro warmth without tipping into sepia.

Luxury 66/100

High

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

Brand distinctiveness 14/100

Very low

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

UI accent fit 31/100

Low

Workable accent with care around contrast.

Surface fit 53/100

Moderate

Usable as a tinted surface in measured doses.

Print safety 92/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #253646

For UI

For branding

For interior

For fashion

People also use #253646 with

Feldgrau Russian Violet Espresso Gainsboro Charcoal

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 12.4:1. Use

Subtle surface Use #CED7E0 for cards and hover fills. Tint 80

Avoid beside #252B46 — 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 #253646 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: #253646;
  --color-base-rgb: 37 54 70;
  --color-base-oklch: oklch(32.5% 0.036 247.5);
  --color-50: #F5F7FA;
  --color-100: #E4EBF1;
  --color-200: #CAD7E3;
  --color-300: #A4B8CC;
  --color-400: #7F9AB3;
  --color-500: #5F7B96;
  --color-600: #4E6274;
  --color-700: #3B4854;
  --color-800: #293138;
  --color-900: #1A1F23;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  gunmetal-gray: {
    50: '#F5F7FA',
    100: '#E4EBF1',
    200: '#CAD7E3',
    300: '#A4B8CC',
    400: '#7F9AB3',
    500: '#5F7B96',
    600: '#4E6274',
    700: '#3B4854',
    800: '#293138',
    900: '#1A1F23',
  },
}

$base: #253646;
$base-ink: #FFFFFF;
$base-50: #F5F7FA;
$base-100: #E4EBF1;
$base-200: #CAD7E3;
$base-300: #A4B8CC;
$base-400: #7F9AB3;
$base-500: #5F7B96;
$base-600: #4E6274;
$base-700: #3B4854;
$base-800: #293138;
$base-900: #1A1F23;
$base-hover: #1E2B38;
$base-subtle: #B4C3D1;

{
    "color": {
        "base": {
            "value": "#253646",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F5F7FA",
                "type": "color"
            },
            "100": {
                "value": "#E4EBF1",
                "type": "color"
            },
            "200": {
                "value": "#CAD7E3",
                "type": "color"
            },
            "300": {
                "value": "#A4B8CC",
                "type": "color"
            },
            "400": {
                "value": "#7F9AB3",
                "type": "color"
            },
            "500": {
                "value": "#5F7B96",
                "type": "color"
            },
            "600": {
                "value": "#4E6274",
                "type": "color"
            },
            "700": {
                "value": "#3B4854",
                "type": "color"
            },
            "800": {
                "value": "#293138",
                "type": "color"
            },
            "900": {
                "value": "#1A1F23",
                "type": "color"
            }
        }
    }
}